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HTML 

              
                <div class="environment">
  <div class="sky"></div>
  <div class="stars"></div>
  <div class="sun"></div>
  <div class="moon"></div> 
  <div class="mountains">
    <div class="mountain">
      <div class="trees">
        <div class="tree"></div>
        <div class="tree tree--2"></div>
        <div class="tree tree--3"></div>
        <div class="tree tree--4"></div>
      </div>
    </div>
    <div class="mountain mountain--2"></div> 
  </div>
  <div class="water"></div>
  <div class="lily lilly-1"></div>
</div>

<div class="player">
  
  <div class="legs">
    <div class="leg leg--left">
    </div>
    <div class="leg leg--right">
    </div>
  </div>
  
  <div class="body">
    <div class="crown"></div>
    <div class="belly"></div>
    <div class="arms">
      <div class="arm arm--left">
        <div class="hand">
          <div class="toe"></div>
          <div class="toe"></div>
          <div class="toe"></div>
        </div>
      </div>
      <div class="arm arm--right">
        <div class="hand">
          <div class="toe"></div>
          <div class="toe"></div>
          <div class="toe"></div>
        </div>
      </div>
    </div>
    <div class="mouth">
      <div class="top-lip"></div>
      <div class="bottom-lip"></div>
      <div class="tongue">
        <div class="tongue-inner">
          <div class="fly is-dead"></div>
        </div>
      </div>
    </div>
    <div class="eyes">
      <div class="eye eye--left">
        <div class="pupil"></div>
      </div>
      <div class="eye eye--right">
        <div class="pupil"></div>
      </div>
    </div>
  </div>
</div>

<div class="screen menu">
  <h1>Feed the <span>Frog</span></h1>
  <a href="#" class="btn play" onClick="play()">
    <span class="text">Play</span>
    <br>
    <span>Best: <span class="js-best">0</span></span>
  </a>
  <a href="#" class="btn" onClick="settings()">Settings</a>
</div>

<div class="screen game">
  <div class="hud">
    <div class="time">
      <span class="label">Time</span>
      <span class="value js-time">30</span>
    </div>

    <div class="score">
      <span class="label">Points</span>
      <span class="value js-score">0</span>
    </div>
  </div>
  
  <div class="flies">
    <div class="path">
      <div class="target">
        <div class="fly"></div>
      </div>
    </div>
    <div class="path">
      <div class="target">
        <div class="fly"></div>
      </div>
    </div>
    <div class="path">
      <div class="target">
        <div class="fly"></div>
      </div>
    </div>
    <div class="path">
      <div class="target">
        <div class="fly"></div>
      </div>
    </div>
    <div class="path">
      <div class="target">
        <div class="fly"></div>
      </div>
    </div>
    <div class="path">
      <div class="target">
        <div class="fly"></div>
      </div>
    </div>
  </div>
 
  
</div>

<div class="screen win">
  <h1>Finished</h1> 
  <div class="card">
    <h3 class="highscore js-highscore is-hidden">New Highscore!</h3>
    
    <div class="score">
      <span class="label">Points</span>
      <span class="value js-score">30</span>
    </div>

    <div class="best">
      <span class="label">Best</span>
      <span class="value js-best">0</span>
    </div>
    
  </div>
  <a href="#" class="btn" onClick="play()">Play Again</a>
  <a href="#" class="btn btn--clear" onClick="menu()">Back to Menu</a>
</div>

<div class="screen settings">
  <h1>Settings</h1>
  
  <div class="card">
    <label class="checkbox">
      <input type="radio" name="theme" value="light" checked onclick="toggleTheme(this.value)">
      <span>Day Time</span>
    </label>
    <label class="checkbox">
      <input type="radio" name="theme" value="dark" onclick="toggleTheme(this.value)">
      <span>Night Time</span>
    </label>
  </div>
  
  <a href="#" class="btn js-toggle-music" onClick="toggleMusic()">Play Music</a>
  
  <a href="#" class="btn" onClick="menu()">Back</a>
</div>

<div class="screen scoreboard">
  <h1>Score Board</h1>
  <div class="card">
    <ol class="scoreboard-list js-scoreboard"></ol>
  </div>
  
  <a href="#" class="btn" onClick="menu()">Back</a>
</div>

<audio id="music" src="https://www.dl-sounds.com/wp-content/uploads/edd/2015/09/Ducky-Duck-preview.mp3"></audio>
!

CSS 

              
                // Please excuse the mess, I need to do some tidying
$player-width: 6.5em;
$player-height: 9.75em;
$eye-size: 2.3em;
$pupil-size: 0.4rem;
$player-size: 0.9rem;


$themeColors: (
  outlines: (
    sky: #fff,
    text: #000,
    mouth: #000,
    fly: #000,
  ),
  light: (
    sky: #aedef7,
    water: #5f96d5,
    ground: #be9b74,
    grass: #a7cc67,
    tree: #6f4817,
    tree-leaves: #2d5e3b,
    rock: #666,
    mountain: #a4c18b,
    // lily: #0f4517,
    lily: #777,
    fly: #111,

    skin: #9fb761,
    skin-dark: #718644,
    skin-light: #f8efdf,
    tongue: #c8725b,
    mouth: #333,
    mouth-hole: #c8725b
  ),
  dark: (
    sky: #002,
    water: #0f0f2f,
    ground: #0f0f2f,
    grass: #0f0f2f,
    tree: #0a0a2a,
    tree-leaves: #0a0a2a,
    mountain: #0a0a2a,
    // lily: #070917,
    lily: #223,
    rock: #0a173b,
    
    fly: #111,
    
    
    skin: #7f9761,
    skin-dark: #516644,
    skin-light: #f8efdf,
    tongue: #a8525b,
    mouth: #111,
    mouth-hole: #a8525b
    
    // skin: #5c6d96,
    // skin-dark: #3f4770,
    // skin-light: #c5c2d3,
    // tongue: #a56482,
    // mouth: #111,
    // mouth-hole: #a56482
  )
);

@keyframes squiggly {
    0%    { filter: url('#squiggly-0'); }
   25%    { filter: url('#squiggly-1'); }
   50%    { filter: url('#squiggly-3'); }
  100%    { filter: url('#squiggly-4'); }
}

body {
  //animation: squiggly 0.25s infinite;
}

@mixin color($color, $property: background) {
  #{$property}: #fff;//#{map-get($colors, $color)};
  
  @each $key, $value in $themeColors {
    .#{$key} & {
      #{$property}: #{map-get($value, $color)};
    }
  }
}

@mixin border($color: #000) {
  border: 1px solid rgba($color, 1);
}

@mixin textShadow($color, $thickness) {
  // text-shadow: none;
  text-shadow: 0 $thickness 0 $color, 0 (-1 * $thickness) 0 $color, $thickness 0 0 $color, (-1 * $thickness) 0 0 $color, $thickness $thickness 0 $color, (-1 * $thickness) (-1 * $thickness) 0 $color, (-1 * $thickness) $thickness 0 $color, $thickness (-1 * $thickness) 0 $color; 
}

html,
body {
  width: 100%;
  height: 100%;
  overflow: hidden;
  background: #fff;
  color: #000;
  font-size: 2.5vh;
}
body {
  &.dark {
    color: #fff;
  }
  font-family: arial;
}

.card {
  overflow: hidden;
  max-width: 20em;
  padding: 1em;
  margin: 0 auto 1em;
  background: rgba(#fff, 0.25);
  border: 1px solid #000;
  border-radius: 0.25em;
  // color: #000;
}

.btn {
  display: block;
  margin: 0 auto 0.5em;
  padding: 1em;
  max-width: 20em;
  font-weight: bold;
  letter-spacing: 1px;
  text-decoration: none !important;
  text-transform: uppercase;
  text-shadow: none !important;
  // @include textShadow(rgba(#000, 0.2), 1px);
  background: #fff;
  // box-shadow: inset 0 -0.2em 0 0.1em rgba(#000, 0.1);
  transition: all 0.2s;
  border: 1px solid rgba(#000, 0.5);
  // border-radius: 50% 100% 50% 100%;
  // border-radius: 0.25rem;
  border-radius: 4px;
  color: #000;
  
  &:hover {
    // background: #fff;
  }
  
  &--clear {
    // background: none;
    // border-color: transparent;
    // color: inherit;
  }
}

.checkbox {
  display: inline-block;
  font-weight: bold;
  text-transform: uppercase;
  // margin-bottom: 1rem;
  
  input {
    display: none;
  }
  span {
    display: block;
    padding: 1em;
    background: #fff;
    border: 1px solid #bbb;
    border-radius: 4px;
    color: #000;
    transition: all 0.2s;
    cursor: pointer;
  }
  input:checked + span {
    border-color: #000;
  }
}

.play {
  .text {
    font-size: 2em;
  }
}

.scoreboard {
  .scoreboard-list {
    display: inline-block;
    padding: 0;
    margin: 0;
    text-align: right;
    // list-style-type: none;
  }
}
.game {
  .hud {
    padding: 0 1rem;
    font-size: 1.5rem;
    letter-spacing: 1px;
    
    .dark & {
      @include textShadow(rgba(#000, 0.1), 1px);
    }
    
    .label {
      display: block;
      font-size: 0.6em;
      font-weight: normal;
      text-transform: uppercase;
    }
    .value {
      font-size: 2em;
      font-weight: bold;
      line-height: 1;
    }
  }
  .time {
    float: left;
  
  }
  .score {
    float: right;
  }
}
.win {
  .dark & {
    @include textShadow(rgba(#000, 1), 1px);
  }
  .score {
    float: left;
  
  }
  .best {
    float: right;
  }
  .label {
    display: block;
    font-size: 0.6em;
    font-weight: normal;
    text-transform: uppercase;
  }
  .value {
    font-size: 2em;
    font-weight: bold;
    line-height: 1;
  }

  .highscore {
    display: block;
    clear: both;

    &.is-hidden {
      display: none;
    }
  }
}

.screen {
  // cursor: pointer;
  // display: none;
  position: fixed;
  z-index: 10;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  // display: flex;
  // flex-direction: column;
  // justify-content: center;
  height: 100%;
  padding: 1em;
  overflow: hidden;
  text-align: center;
  
  visibility: hidden;
  opacity: 0;
  transform: translateY(-1em);
  // background: rgba(#000, 0.5);
  
  transition: all 0.2s 0.1s;
  
  &.is-active {
    visibility: visible;
    opacity: 1;
    transform: translateY(0);
  }
  
  &.game {
    padding-left: 0;
    padding-right: 0;
    background: none;
  }
  
  h1 {
    text-transform: uppercase;
  }
}


// Environment
.sky {
  position: fixed;
  // z-index: -10;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  transition: all 0.5s;
  @include color(sky);
  cursor: pointer;
  
  &:before {
    // display: none;
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    right: 0;
    background: linear-gradient(to bottom, rgba(255, 255, 255, 0.0001), #fff);
    // background: linear-gradient(to bottom, #7FC273, #43775A);
    opacity: 0.5;
    content: '';
    transition: all 0.2s;
    
    .dark & {
      opacity: 0.3;
    }
  }
}
@keyframes twinkle {
  0% {
    border-left-color: rgba(#fff, 1);
    border-right-color: rgba(#fff, 0);
  }
  33.3334% {
    border-left-color: rgba(#fff, 0);
    border-right-color: rgba(#fff, 1);
  }
  66.6667% {
    border-left-color: rgba(#fff, 0);
    border-right-color: rgba(#fff, 1);
  }
  100% {
    border-left-color: rgba(#fff, 1);
    border-right-color: rgba(#fff, 0);
  }
}
.stars {
  position: fixed;
  left: 2em;
  right: 2em;
  top: 4em;
  height: 2px;
  transform: rotate(40deg);
  border-width: 0 2px;
  border-style: solid;
  border-color: #fff;
  
  opacity: 0;
  transform: translateY(-5em);
  transition: all 0.5s;
  
  will-change: opacity;
  
  animation: twinkle 6s infinite alternate;
  
  .dark & {
    opacity: 1;
    transform: translateY(0);
  }
  
  &:before,
  &:after {
    position: fixed;
    top: 6em;
    left: 2em;
    right: 0em;
    height: inherit;
    border: inherit;
    transform: rotate(-15deg);
    opacity: 0.5;
    content: '';
    will-change: opacity;
  }
  &:before {
    animation: twinkle 3s infinite alternate-reverse;
  }
  &:after {
    top: 0.5em;
    left: 3em;
    right: 6em;
    opacity: 1;
    transform: rotate(-30deg);
    animation: twinkle 6s infinite alternate;
  }
}
.moon {
  position: fixed;
  // z-index: -5;
  bottom: 20em;
  left: 50%;
  width: 10em;
  height: 10em;
  background: #fff;
  border-radius: 50%;
  transition: all 0.5s ease-in-out;
  transform: translateY(2em);
  box-shadow: 0 0 4em #fff, 0 0 12em #fff, 0 0 0 6em rgba(#d3e6eb, 0.025), 0 0 0 12em rgba(#d3e6eb, 0.025), 0 0 0 18em rgba(#d3e6eb, 0.025);
  opacity: 0;
  
  &:before,
  &:after {
    position: absolute;
    top: 20%;
    left: 10%;
    width: 30%;
    height: 30%;
    border-radius: 50%;
    background: rgba(#000, 0.05);
    box-shadow: inset 0 0 1em rgba(#000, 0.1);
    content: '';
    opacity: 0.1;
  }
  &:after {
    top: auto;
    left: auto;
    bottom: 10%;
    right: 10%;
    width: 50%;
    height: 50%;
    opacity: 0.1;
  }
  
  .dark & {
    transform: translateY(0);
    opacity: 1;
  }
}
.mountains {
  opacity: 0.3;
  
  .dark & {
    opacity: 0.9;
  }
}
.mountain {
  // display: none;
  position: fixed;
  left: -100%;
  bottom: -3em;
  width: 200%;
  height: 14em;
  @include color(mountain);
  border-radius: 0 100% 0 0;
  transition: all 0.5s ease-in-out;
  
  &--2 {
    // z-index: -1;
    left: auto;
    right: -10%; 
    height: 10em;
    border-radius: 100% 0 0 0;
    // opacity: 0.6;
  }
}
.grass {
  display: none;
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  height: 8em;
  @include color(grass);
  transition: all 0.5s ease-in-out;
  // border-top: 1px solid rgba(#000, 0.2);
}
.water {
  // display: none;
  position: fixed;
  z-index: 2;
  left: 0;
  right: 0;
  bottom: 0;
  height: 3em;
  // border-top: 1px solid #000;
  transition: all 0.5s ease-in-out;
  @include color(water);
}

.tree {
  position: absolute;
  z-index: 3;
  right: 38%;
  top: -6.8em;
  width: 1.5em;
  height: 10em;
  transition: all 0.5s;
  @include color(tree);
  transform: scale(0.2, 0.2);
  transform-origin: 50% 100%;
  
  &:before,
  &:after {
    position: absolute;
    left: 50%;
    bottom: 2em;
    display: inline-block;
    width: 0;
    transform: translateX(-50%);
    transition: all 0.5s ease-in-out;
    border-width: 0 6em 12em;
    border-style: solid;
    border-color: transparent;
    border-radius: 0 0 100% 100% / 0 0 1em 1em;
    @include color(tree-leaves, border-bottom-color);
    content: '';
  }
  &:after {
    width: 0;
    bottom: 9em;
    border-width: 0 3em 6em;
  }
  
  &--2 {
    left: auto;
    right: 1.5em;
    top: -5.9em;
    transform: scale(0.2, 0.2);
    // opacity: 0.5;
  }
  &--3 {
    top: -5.5em;
    right: 47%;
    // left: 1em;
    // bottom: 12em;
    transform: scale(0.4, 0.4);
  }
}

.lily {
  // display: none;
  @extends .shadow;
  position: fixed;
  z-index: 3;
  left: 50%;
  bottom: 0.5em;
  // bottom: 0;
  height: 1.5em;
  width: 12em;
  transform: translateX(-50%);
  @include color(lily);
  border: 1px solid #000;
  border-bottom: 0;
  border-radius: 50% 50% 0 0 / 100% 100% 0 0;
  // animation: float 5s infinite alternate ease-in-out;
  
  &--2 {
    left: -9em;
    bottom: 5em;
    border: none;
    animation-delay: 2s;
    opacity: 0.6;
    transform: scale(0.5, 0.3);
  }
  
  &--3 {
    right: -7em;
    left: auto;
    bottom: 6em;
    border: none;
    animation-delay: -2s;
    opacity: 0.4;
    transform: scale(0.2, 0.15);
  }
}

// Characters
.shadow {
  box-shadow: none;
  // box-shadow: inset 0 -1em 1.5em -1em rgba(#000, 0.5), inset 0 1em 1.5em -1em rgba(#fff, 0.5);
}


.flies {
  display: flex;
  flex-wrap: wrap;
  width: 100%;
  overflow: hidden;
  // font-size: 0.2em;
  
  .path {
    flex: 1 1 50%;
    padding: 1em 0;
    text-align: center;
    transition: transform 0.2s; 
    will-change: transform;
    
    &:nth-child(odd) {
      transform: translateX(-100%);
    }
    &:nth-child(even) {
      transform: translateX(100%);
    }
    &.is-active {
      &:nth-child(odd) {
        transform: translateX(-20%);
      }
      &:nth-child(even) {
        transform: translateX(20%);
      }
    }
    &.is-hidden {
      visibility: hidden;
    }
  }
}

.target {
  display: inline-block;
  width: 4em;
  height: 4em;
  line-height: 4em;
  text-align: center;
  // border: 1px solid rgba(#000, 0.1);
  background: rgba(#fff, 0.05);
  border-radius: 50%;
  // cursor: pointer;
}

.fly {
  @extend .shadow;
  z-index: 99;
  display: inline-block;
  width: 0.8em;
  height: 0.8em;
  border-radius: 50%;
  background: #000;
  // @include color(fly);
  border: 1px solid #000;
  // box-shadow: 0 0 8em 8em rgba(#fff, 0.3);
  will-change: transform;
  transform: translateY(50%);
  
  &:before,
  &:after {
    @extend .shadow;
    position: absolute;
    z-index: -1;
    bottom: 50%;
    width: 0.8em;
    height: 0.5em;
    border-radius: 60%;
    background: #fff;
    border: 1px solid #000;
    will-change: transform;
    content: '';
  }
  // Left
  &:before {
    right: 60%;
    transform: rotate(15deg);
    transform-origin: 100% 50%;
    animation: flapLeft 0.08s infinite;
  }
  // Right
  &:after {
    left: 60%;
    transform: rotate(-15deg);
    transform-origin: 0% 50%;
    animation: flapRight 0.08s infinite;
  }
  
  &--dead {
    animation: none;
  }
}

@keyframes fly {
  from {
    transform: translateX(-30em);
  }
  to {
    transform: translateX(30em);
  }
}
@keyframes flapLeft {
  from {
    transform: rotate(-15deg);
  }
  to {
    transform: rotate(25deg);
  }
}
@keyframes flapRight {
  from {
    transform: rotate(25deg);
  }
  to {
    transform: rotate(-15deg);
  }
}

@keyframes float {
  0% {
    transform: translateX(-50%) translateY(0);
  }
  50% {
    transform: translateX(-50%) translateY(0.2em);
  }
  100% {
    transform: translateX(-50%) translateY(0);
  }
}
.player {
  z-index: 99999;
  position: absolute;
  left: 50%;
  bottom: 2em;
  display: inline-block;
  font-size: $player-size;
  transform: translateX(-50%);
  //animation: float 5s infinite alternate ease-in-out;
  
  .body {
    @extend .shadow;
    position: relative;
    width: $player-width;
    height: $player-height;
    transform: translateY(0);
    transition: all 0.2s;
    @include color(skin);
    
    border-radius: 4em 4em 4em 4em / 3em 3em 2em 2em;
    @include border;
    will-change: transform;
  }
  
  &.is-active .body {
    animation: body 0.25s;
  }
  
  .belly {
    @extend .shadow;
    position: absolute;
    z-index: 1;
    left: 50%;
    height: 50%;
    bottom: -0.5em;
    left: 0.25em;
    right: 0.25em;
    @include color(skin-light);
    // @include border;
    border-bottom: 1px solid #000;
    border-radius: 0 0 50% 50% / 0 0 1em 1em;
  }
  
  .crown {
    display: none;
    z-index: -10;
    position: absolute;
    bottom: 100%;
    left: 50%;
    // margin-top: -1px;
    margin-bottom: 1px;
    border-width: 2em 1.5em 0;
    border-style: solid;
    border-color: transparent gold gold;
    transform: translateX(-50%);
    
    &:before {
      position: absolute;
      bottom: 0;
      left: -1em;
      border-width: 0 1em 2em;
      border-style: solid;
      border-color: gold transparent;
      content: '';
    }
  }
  
  .arms {
    position: absolute;
    z-index: 2;
    left: 0;
    right: 0;
    bottom: -0.5em;
    will-change: transform;
    
    .arm {
      @extend .shadow;
      position: absolute;
      bottom: 0em;
      width: 2.5em;
      height: 4em;
      @include color(skin);
      @include border;
      
      &:before {
        position: absolute;
        top: -2.5em;
        width: 1em;
        height: 2.75em;
        @include color(skin);
        @include border;
        border-bottom: none;
        // border-top: none;
        // border-radius: 1em 1em 0 0;
        content: '';
      }
      
      .hand {
        // display: none;
        position: absolute;
        bottom: -0.25em;
        width: 2em;
        height: 0.5em;
        font-size: 1.25em;
        @include color('skin');
        @include border;
        border-radius: 50% 50% 0 0 / 100% 100% 0 0 !important;
        
        .toe {
          // display: none;
          position: absolute;
          bottom: -0.25em;
          width: 0.5em;
          height: 0.5em;
          @include color('skin');
          @include border;
          // border-top: 0;
          border-radius: 50%;
          
          &:first-child {
            left: -0.25em;
          }
          &:nth-child(2n) {
            z-index: 2;
            left: 50%;
            transform: translateX(-50%);
          }
          &:last-child {
            right: -0.25em;
          }
        }
      }
      
      &--left {
        left: -1em;
        margin-left: -2px;
        border-radius: 0 100% 0 70%;
        
        &:before {
          left: -1px;
          border-right: none;
          border-radius: 100% 0 0 0;
        }
        .hand {
          left: 0.5em;
          border-left: 0;
          border-radius: 0 100% 0 0;
        }
      }
      &--right {
        right: -1em;
        margin-right: -2px;
        border-radius: 100% 0 70% 0;
        
        &:before {
          right: -1px;
          border-left: none;
          border-radius: 0 100% 0 0;
        }
        .hand {
          right: 0.5em;
          border-right: 0;
          border-radius: 100% 0 0 0;
        }
      }
      
    }
  }
  
  &.is-active .arms {
    animation: arms 0.25s;
  }
  
  .legs {
    position: absolute;
    left: 0;
    right: 0;
    bottom: -0.5em;
    
    .leg {
      @extend .shadow;
      position: absolute;
      z-index: -1;
      bottom: 0;
      width: 6em;
      height: 5em;
      transform: rotate(0);
      transform-origin: 50% 100%;
      transition: all 0.2s;
      @include color(skin-dark);
      @include border;
      will-change: transform;
      
      &--left {
        left: -2.5em;
        // border-radius: 20% 100% 1em 100%;
        border-radius: 25% 75% 25% 75%;
        // border-radius: 50% 0 50% 50%;
      }
      &--right {
        right: -2.5em;
        // border-radius: 100% 20% 100% 1em;
        border-radius: 75% 25% 75% 25%;
        // border-radius: 0 50% 50% 50%;
      }
    }
  }
  &.is-active .leg {
    &--left {
      animation: leftLeg 0.25s;
    }
    &--right {
      animation: rightLeg 0.25s;
    }
  }
  
  .eyes {
    position: absolute;
    z-index: -5;
    top: 0em;
    left: 0em;
    right: 0em;
    
    .eye {
      @extend .shadow;
      position: absolute;
      top: 0em;
      display: inline-block;
      width: $eye-size;
      height: $eye-size; 
      background: #fff;
      @include border;
      border-radius: 50%;
      overflow: hidden;
      
      &--left {
        left: -0em;
      }
      &--right {
        right: -0em;
      }
      
      // Eye Lid
      &:before,
      &:after {
        position: absolute;
        z-index: 6;
        left: 0;
        width: 100%;
        height: 50%;
        transform: translateY(1px);
        transition: all 0.2s;
        @include color(skin-dark);
        border-top: 1px solid #000;
        content: '';
        will-change: transform;
      }
      &:before {        
        bottom: 100%;
        margin-bottom: 1px;
      }
      &:after {
        top: 100%;
      }
      // &:hover:before {
      //   transform: translateY(98%);
      // }      
      &:hover:after {
        transform: translateY(-98%);
      }
      
    }
    
    .pupil {
      position: absolute;
      top: 50%;
      left: 50%;
      width: $pupil-size;
      height: $pupil-size;
      margin: -0.2em 0 0 -0.2em;
      transform: translate(0, 0);
      transition: all 0.2s;
      background: #000;
      border-radius: 4em;
      will-change: transform;
      overflow: hidden;
      
      // &:before {
      //   position: absolute;
      //   top: 10%;
      //   left: 10%;
      //   width: 25%;
      //   height: 25%;
      //   background: #fff;
      //   border-radius: 100%;
      //   content: '';
      // }
    }
  }
  
  .mouth {
    position: absolute;
    z-index: 6;
    top: 3.25em;
    left: 0.5em;
    right: 0.5em;
    height: 2.25em;
    // @include color(mouth);
    background: #000;
    border-radius: 0;
    @include border;
    border-top: 0;
    border-bottom: 0;
    
    &:before {
      position: absolute;
      top: 1em;
      left: 0.5em;
      right: 0.5em;
      bottom: 0;
      border-radius: 50% 50% 0 0 / 100% 100% 0 0;
      @include color('mouth-hole');
      content: '';
    }
    
    // Top Lip
    .top-lip {
      // display: none;
      position: absolute;
      left: -0.25em;
      right: -0.25em;
      bottom: 100%;
      height: 0;
      @include color(skin);
      border-bottom: 1px solid #000;
    }
    // Bottom Lip
    .bottom-lip {
      // @extend .shadow;
      position: absolute;
      z-index: 10;
      top: -1px;
      left: -0.25em;
      right: -0.25em;
      height: 2.5em;
      margin-left: -1px;
      margin-right: -1px;
      transform: translateY(0);
      transition: all 0.25s;
      @include color(skin-light);
      // @include border;
      // border-bottom: 0;
      border-top: 1px solid #000;
      will-change: transform;
      // border-radius: 0 0 4em 4em;
      // border-bottom: 1px solid #000;
      border-radius: 0;
      // box-shadow: inset 0 1.25em 0 -1em rgba(#000, 0.05);
      content: '';
      
      &:after {
        display: none;
        position: absolute;
        top: 0.5em;
        left: 1.5em;
        right: 1.5em;
        height: 0.25em;
        // border-radius: 0 0 50% 50% / 0 0 0.5em 0.5em;
        border-bottom: 1px solid #000;
        opacity: 0.1;
        content: '';
      }
    }
  }
  .tongue {
    pointer-events: none;
    position: absolute;
    // z-index: -1;
    z-index: 8;
    bottom: 0.5em;
    left: 50%;
    width: 4em;
    height: 0;
    margin-left: -2em;
    overflow: hidden;
    transform: rotate(0);
    transform-origin: 50% 100%;
    will-change: transform;
    border-radius: 4em 4em 4em 4em;
    
    &-inner {
      @extend .shadow;
      position: absolute;
      left: 1.25em;
      right: 1.25em;
      top: 0;
      bottom: 0;
      transform: translateY(100%);
      transition: all 0.1s ease-in-out;
      @include color(tongue);
      @include border;
      border-bottom: 0;
      border-radius: 4em 4em 4em 4em;
      // box-shadow: inset 0 -1em 1em -0.5em rgba(#000, 0.75);
      box-sizing: border-box;
      text-align: center;
      content: ''; 
      will-change: transform;
      
      &:before {
        position: absolute;
        top: -0.5em;
        left: -0.5em;
        right: -0.5em;
        min-height: 3em;
        max-height: 6em;
        height: 50%;
        @include color(tongue);
        border-radius: 50%;
        @include border;
        border-bottom: none;
        //content: '';
      }
    }
    
    .fly {
      visibility: hidden;
      margin-top: -1em;
      font-size: 1.1rem;
      
      &.is-active {
        animation: dead-fly 0.25s;
      }
     &.is-active2 {
        animation: dead-fly2 0.25s;
      } 
      &:before,
      &:after {
        top: 0em;
        //animation: none;
      }
    }
  }
  
  &.is-shooting-down {
    .eyes {
      z-index: 8;
    }
    .mouth {
      z-index: 6;
    }
    .tongue {
      z-index: 6;
      bottom: 1.5em;
    }
    .top-lip {
      z-index: 8;
      height: 1em;
    }
    .bottom-lip {
      z-index: 4;
    }
  }
  
  &.is-active .tongue-inner {
    // transform: translateY(0);
    animation: shoot 0.25s;
  }
  &.is-active .mouth {
    .bottom-lip {
      animation: mouth 0.25s;
    }
  }
}

@keyframes dead-fly {
  0% {
    visibility: hidden;
  }
  49% {
    visibility: hidden;
  }
  50% {
    visibility: visible;
  }
  99% {
    visibility: visible;
  }
  100% {
    visibility: hidden;
  }
}

@keyframes dead-fly2 {
  0% {
    visibility: hidden;
  }
  49% {
    visibility: hidden;
  }
  50% {
    visibility: visible;
  }
  99% {
    visibility: visible;
  }
  100% {
    visibility: hidden;
  }
}

@keyframes shoot {
  0% {
    transform: translateY(105%);
  }
  50% {
    transform: translateY(0);
  }
  100% {
    transform: translateY(105%);
  }
}
@keyframes body {
  0% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-1em);
  }
  100% {
    transform: translateY(0);
  }
}
@keyframes leftLeg {
  0% {
    transform: rotate(0);
  }
  50% {
    transform: rotate(-10deg);
  }
  100% {
    transform: rotate(0);
  }
}
@keyframes rightLeg {
  0% {
    transform: rotate(0);
  }
  50% {
    transform: rotate(10deg);
  }
  100% {
    transform: rotate(0);
  }
}
@keyframes arms {
  0% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(1em);
  }
  100% {
    transform: translateY(0);
  }
}
@keyframes mouth {
  0% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(1.9em);
  }
  100% {
    transform: translateY(0);
  }
}
!

JS 

              
                // Please excuse the mess, I need to do some tidying

var activeScreen = document.querySelector('.screen.is-active');
var menuScreen = document.querySelector('.screen.menu');
var gameScreen = document.querySelector('.screen.game');
var winScreen = document.querySelector('.screen.win');
var settingsScreen = document.querySelector('.screen.settings');
var scoreboardScreen = document.querySelector('.screen.scoreboard');
var scoreBoard = document.querySelector('.js-scoreboard');

var player = document.querySelector('.player');
var tongue = document.querySelector('.tongue');
var eyes = document.querySelectorAll('.eye');
var pupils = document.querySelectorAll('.pupil');
var deadFly = document.querySelector('.tongue .fly');

var paths = document.querySelectorAll('.path');
var targets = document.querySelectorAll('.target');

var scoreEls = document.querySelectorAll('.js-score');
var bestEls = document.querySelectorAll('.js-best');
var timerEl = document.querySelector('.js-time');
var highscoreEl = document.querySelector('.js-highscore');
var timerIntervalId;

// Audio
var musicPlaying = false;
var musicButton = document.querySelector('.js-toggle-music')
var music = document.querySelector('#music');

var state = {};
var hidden = [];
var theme;
var scores = [];
var shooting = false;
var playing = false;
var transitioning = false;
var lastPath = false;

var storage = window.localStorage;

var clickOrTap = ((window.document.documentElement.ontouchstart!==null)?'click':'touchstart');

init();

function init() {
  prepPaths();
  loadStorage();
  renderBest();
  toggleScreen(menuScreen);
}
function prepPaths() {
  for (var i = 0; i < paths.length; i++) {
    paths[i].setAttribute('data-id', i);
  }
}
function loadStorage() {
  theme = storage.getItem('theme');
  
  if (!theme) {
    theme = 'light';
  }
  
  scores = storage.getItem('scores');
  
  if (!scores) {
    scores = [];
  } else {
    scores = JSON.parse(scores);
  }
  
  toggleTheme(theme);
  renderScoreBoard();
}

function renderScoreBoard() {
  var html = '';
  
  for (var i = 0; i < 10; i++) {
    html += "<li>";
    html += scores[i] || '-';
    html += "</li>";
  }
  
  scoreBoard.innerHTML = html;
  
}

function setState() {
  state = {
    time: 30,
    score: 0
  }
}

function toggleMusic() {
  musicPlaying = !musicPlaying;
  if (musicPlaying) {
    music.play();  
    musicButton.textContent = "Stop Music";
  } else {
    music.pause();
    music.currentTime = 0;
    musicButton.textContent = "Play Music";
  }
  
}

function play() {
  playing = true;
  setState();
  renderScore();
  toggleScreen(gameScreen);
  peep();
  peep();
  peep();
  peep();
  startTimer();
}

function win() {
  playing = false;
  var prevBest = scores[0] || 0;
  scores.push(state.score);
  scores.sort(function(a,b) {
    return b - a;
  });
  if (scores.length > 10) {
    scores.pop();
  }
  saveScores();
  var best = scores[0] || 0;
  if (state.score > prevBest) {
    best = state.score;
    highscoreEl.classList.remove('is-hidden');
  } else {
    highscoreEl.classList.add('is-hidden');
  }
  renderBest(best);
  renderScoreBoard();
  toggleScreen(winScreen);
}

function renderBest() {
  for (var i = 0; i < bestEls.length; i++) {
    bestEls[i].textContent = scores[0];
  }
}

function saveScores() {
  storage.setItem('scores', JSON.stringify(scores));
}

function menu() {
  toggleScreen(menuScreen);
}

function settings() {
  toggleScreen(settingsScreen);
}

function scoreboard() {
  toggleScreen(scoreboardScreen);
}

function startTimer() {
  // Set the time before starting timer
  timerEl.textContent = state.time;
  
  timerIntervalId = setInterval(function(e) {
    state.time -= 1;
    timerEl.textContent = state.time;
    
    if (state.time <= 0) {
      clearInterval(timerIntervalId);
      win();
    }
  }, 1000);
}

function score(value) {
  state.score += value || 1;
  
  renderScore();
}
function renderScore() {
  for (var i = 0; i < scoreEls.length; i++) {
    scoreEls[i].textContent = state.score;
  }
}

function toggleScreen(screen) {
  if (activeScreen) {
    activeScreen.classList.remove('is-active');
  }
  
  screen.classList.add('is-active');
  activeScreen = screen;
}

function toggleTheme(value) {
  document.body.classList.remove(theme);
  document.body.classList.add(value);
  theme = value;
  
  storage.setItem('theme', value);
}




// Game Logic
// Events
window.onmousemove = eyesFollow;
window.document.addEventListener(clickOrTap, shoot);
for (var i = 0; i < targets.length; i++) {
  targets[i].addEventListener(clickOrTap, hit);
}

function shoot(e) {
  eyesFollow(e);
  // deadFly.classList.remove('is-active');
  
  player.classList.remove('is-active');
  tongue.style.height = 0 + "px";
  tongue.style.transform = "rotate(" + 0 + "deg)";

  var tongueX = tongue.getBoundingClientRect().left  + (tongue.offsetWidth);
  var tongueY = tongue.getBoundingClientRect().bottom;
  var touch = getTouch(e);
  var clickX = touch.x + (tongue.offsetWidth / 2);
  var clickY = touch.y;

  shooting = true;
  transitioning = true;

  var angle = getAngle(tongueX, tongueY, clickX, clickY);
  var height = getHeight(tongueX, tongueY, clickX, clickY);

  if (angle > 0 && angle < 180) {
    player.classList.add('is-shooting-down');
  } else {
    player.classList.remove('is-shooting-down');
  }

  player.classList.add('is-active');
  tongue.style.height = height + "px";
  tongue.style.transform = "rotate(" + (angle + 90)  + "deg)"; 
}
function hit(e) {
  var path = this.parentNode;
  var id = path.getAttribute('data-id');
  
  if (!e.isTrusted || hidden.includes(id)) {
    return;
  }
  if (state.score % 2 == 0) {
    deadFly.classList.add('is-active2');
    deadFly.classList.remove('is-active');
  } else {
    deadFly.classList.add('is-active');
    deadFly.classList.remove('is-active2');
  }
  path.classList.remove('is-active');
  path.classList.add('is-hidden');
  hidden.push(id); 
  
  // Show dead fly on tongue
  //deadFly.classList.add('is-active');
  // console.log('show dead fly');
  
  setTimeout(function() {
    var id = hidden.shift();
    paths[id].classList.remove('is-hidden');
  }, 1000);
  
  score();
}

function eyesFollow(e) {
  var touch = getTouch(e);
  moveEye({x: touch.x, y: touch.y}, eyes[0], pupils[0]);
  moveEye({x: touch.x, y: touch.y}, eyes[1], pupils[1]);
}

function moveEye(mouse, eye, pupil) {
  var left = 0;
  var top = 0;
  var eyeRadius = eye.offsetWidth / 2;
  var pupilRadius = pupil.offsetWidth / 2;

  var leftOffset = eye.getBoundingClientRect().left;
  var topOffset = eye.getBoundingClientRect().top;

  var center = [eye.getBoundingClientRect().left + eyeRadius, eye.getBoundingClientRect().top + eyeRadius];

  var dist = getDistance([mouse.x, mouse.y], center);

  if (dist <= eyeRadius) {
    left = mouse.x - leftOffset - eyeRadius;
    top = mouse.y - topOffset - eyeRadius;
  } else {
    var x = mouse.x - center[0];
    var y = mouse.y - center[1];
    var radians = Math.atan2(y, x);
    left = (Math.cos(radians) * (eyeRadius - pupilRadius));
    top = (Math.sin(radians) * (eyeRadius - pupilRadius));
  }
  
  // if (top > 0) {
  //   eye.classList.add('down');
  //   eye.classList.remove('up');
  //   console.log('down');
  // } else {
  //   eye.classList.add('up');
  //   eye.classList.remove('down');
  //   console.log('up');
  // }

  pupil.style.transform = "translate(" + left + "px, " + top + "px)";
}

function getRandomPath(lanes) { 
  const idx = Math.floor(Math.random() * paths.length);
  const path = paths[idx];
  if (path === lastPath || paths[idx].classList.contains('is-hidden')) {
    // console.log('Ah nah thats the same one bud');
    return getRandomPath(paths);
  }
  lastPath = path;
  return path;
}

function peep() {
  const time = getRandomTime(600, 1200);
  const path = getRandomPath(paths);
  path.classList.add('is-active');
  setTimeout(function() {
    path.classList.remove('is-active');
    if (playing) {
      peep();
    }
  }, time);
}

// Utility
function getRandomTime(min, max) {
  return Math.round(Math.random() * (max - min) + min);
}

function getDistance(dot1, dot2) {
  var x1 = dot1[0],
      y1 = dot1[1],
      x2 = dot2[0],
      y2 = dot2[1];
    
  return Math.sqrt(Math.pow(x1 - x2, 2) + Math.pow(y1 - y2, 2));
}

function getAngle(cx, cy, ex, ey) {
  var dy = ey - cy;
  var dx = ex - cx;
  var theta = (Math.atan2(dy, dx)) * 180 / Math.PI;
  
  return theta;
}

function getHeight(x1, y1, x2, y2) {
  var a = x1 - x2;
  var b = y1 - y2;

  return Math.sqrt( a*a + b*b );
}

function getTouch(e) {
  if (e.touches) {
    return {
      x: e.touches[0].clientX,
      y: e.touches[0].clientY
    }
  } else {
    return {
      x: e.clientX,
      y: e.clientY
    }
  }
}
!
999px

Console