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CSS

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HTML 

              
                #app
  transition(name="fade" mode="out-in" appear v-cloak)
    form(@submit="checkPassword" v-if="!logged_in")
      label(for="1up") 1up
      input(ref="name" id="1up" type="text")

      label(for="password") Password
      .scene-wrapper
        input(
          @keyup.enter="runPacman"
          ref="password"
          id="password"
          type="password"
          v-model="password_entered"
          :class="{invalid : password_invalid}"
          :disabled="disableInput()"
        )

        transition(:name="transitionPacman" v-on:after-enter="checkPassword")
          .pac-wrapper(v-if="animate_pacman")
            .pacman

        transition(name="cover")
          .input-cover(v-if="animate_pacman || animate_ghost")

        transition(name="ghost" v-on:after-enter="resetAnimation")
          .ghost-wrapper(v-if="animate_ghost")
            .ghost(:class="{runaway : password_match}")

      input(
        @click="runPacman"
        ref="start"
        type="button"
        value="Press Start"
        :disabled="disableInput()"
      )
      
    .logged-in(v-else)
      p You are now logged in.
      p Game over!
      input(
        @click="startOver"
        ref="start"
        type="button"
        value="Login Again!"
      )
!

CSS 

              
                @import url('https://fonts.googleapis.com/css?family=Press+Start+2P');

@function p($push) {
  @return $px * $push;
}

$font: 'Press Start 2p', monospace;
$px: 4px;
$spd: 2s;
$pos: 100%;
$bp: 500px;
$margin: 18px;
$pacman-size: p(13);
$pc:  var(--pacman-color);
$gc:  var(--ghost-color);
$gec: var(--ghost-eye-color);
$gpc: var(--ghost-pupil-color);
$grc: var(--ghost-run-color);

:root {
  --bg-color: black;
  --border-color: #1500C5;
  --ghost-color: #EA82E5;
  --ghost-eye-color: white;
  --ghost-run-color: #1B00FF;
  --ghost-pupil-color: #1500C5;
  --pacman-color: #fdff00;
  --pellet-color: #EBAE9F;
  --text-color: white;
}

[v-cloak] { display: none }

* {
  box-sizing: border-box;
}

body {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100vh;
  padding: $margin;
  font-family: $font;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-color);
  background: var(--bg-color);
}

p {
  line-height: 1.6;
}

form {
  overflow: hidden;
}

.logged-in {
  text-align: center;
}

.scene-wrapper {
  position: relative;
}

label {
  display: block;
  font-size: p(4);
  line-height: 1.4;
  margin-bottom: $margin / 2;
}

input {
  margin-bottom: $margin * 2;
  padding: p(5) 0;
  width: 100%;
  font-family: $font;
  font-size: p(7);
  text-transform: uppercase;
  color: var(--pellet-color);
  background-color: transparent;
  border: $px double var(--border-color);
  border-left-width: 0;
  border-right-width: 0;
  
  &[type="password"] {
    letter-spacing: $margin;
  }
  
  &[type="button"] {
    cursor: pointer;
    border: none;
    background-color: var(--button-color);
    font-size: p(5);
    
    @media(min-width: $bp) {
      font-size: p(6);
    }
    
    &:hover {
      color: white;
    }
  }
  
  &:focus {
    border-color: var(--pellet-color);
    outline: none;
  }
  
  &.invalid {
    animation: invalid-shake 0.4s ease-out;
  }
}

.input-cover {
  position: absolute;
  top: p(3);
  left: -$pacman-size;
  width: calc(100% + #{$pacman-size});
  height: $pacman-size;
  background-color: var(--bg-color);
  z-index: 1;
}

.pac-wrapper,
.ghost-wrapper {
  position: absolute;
  top: p(3);
  left: 0;
  width: 100%;
  height: p(13);
  overflow: hidden;
  z-index: 2;
}

.ghost-wrapper {
  transform: translateX(100%);
}

.ghost,
.pacman {
  position: absolute;
  top: 0;
  width: $px;
  height: $px;
  z-index: 2;
  transform-origin: 100% 100%;
}

.ghost {
  left: 0;
}

.pacman {
  right: $pacman-size;
  animation: waka 0.3s steps(1) infinite forwards;
  
  &:before,
  &:after {
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
  }
  
  &:before { bottom: $pacman-size; }
  &:after  { bottom: $pacman-size * 2; }
}

// Animations
@keyframes waka {
  0%   { margin-top: 0; }
  25%  { margin-top: $pacman-size; }
  50%  { margin-top: $pacman-size * 2; }
  75%  { margin-top: $pacman-size; }
  100% { margin-top: 0; }
}

@keyframes invalid-shake {
  0%   { transform: translate(0, 0); }
  10%  { transform: translate(4px, 2px); }
  20%  { transform: translate(-4px, -2px); }
  30%  { transform: translate(6px, 3px); }
  40%  { transform: translate(-6px, -3px); }
  50%  { transform: translate(6px, 3px); }
  60%  { transform: translate(-4px, -2px); }
  70%  { transform: translate(4px, 2px); }
  80%  { transform: translate(2px, -1px); }
  90%  { transform: translate(-2px, 1px); }
  100% { transform: translate(0); }
}

.pacman-invalid-enter-active,
.pacman-invalid-leave-active,
.pacman-success-enter-active,
.cover-enter-active {
  transition: transform $spd linear;
}

.pacman-success-leave-active {
  transition: transform ($spd / 1.2) ($spd / 2) linear;
}

.ghost-enter-active {
  transition: transform ($spd / 1.1) ($spd / 4) linear;
}

.pacman-invalid-enter,
.pacman-invalid-leave-to,
.pacman-success-enter,
.pacman-success-leave-to,
.pacman-enter,
.cover-enter,
.cover-leave-to {
  transform: translateX(-$pos);
}

.ghost-enter-to {
  transform: translateX(-$pacman-size * 2);
}

.cover-enter-to,
.cover-leave-to {
  transform: translateX($pacman-size);
}

.pacman-invalid-enter-to,
.pacman-success-enter-to {
  transform: translateX($pacman-size * 2);
}

.ghost-enter {
  transform: translateX($pos);
}

.pacman-invalid-leave-to,
.pacman-success-leave-to {
  .pacman {
    transform: scaleX(-1);
  }
}

.fade-enter-active,
.fade-leave-active {
  transition: opacity 0.4s ease-out;
}

.fade-enter,
.fade-leave-to {
  opacity: 0;
}

// Box-shadow sprites
.pacman {
  box-shadow: 
    p(4) p(0) $pc,
    p(5) p(0) $pc,
    p(6) p(0) $pc,
    p(7) p(0) $pc,
    p(8) p(0) $pc,
    p(9) p(0) $pc,

    p(2) p(1) $pc,
    p(3) p(1) $pc,
    p(4) p(1) $pc,
    p(5) p(1) $pc,
    p(6) p(1) $pc,
    p(7) p(1) $pc,
    p(8) p(1) $pc,
    p(9) p(1) $pc,
    p(10) p(1) $pc,
    p(11) p(1) $pc,

    p(1) p(2) $pc,
    p(2) p(2) $pc,
    p(3) p(2) $pc,
    p(4) p(2) $pc,
    p(5) p(2) $pc,
    p(6) p(2) $pc,
    p(7) p(2) $pc,
    p(8) p(2) $pc,
    p(9) p(2) $pc,
    p(10) p(2) $pc,
    p(11) p(2) $pc,
    p(12) p(2) $pc,

    p(1) p(3) $pc,
    p(2) p(3) $pc,
    p(3) p(3) $pc,
    p(4) p(3) $pc,
    p(5) p(3) $pc,
    p(6) p(3) $pc,
    p(7) p(3) $pc,
    p(8) p(3) $pc,
    p(9) p(3) $pc,
    p(10) p(3) $pc,
    p(11) p(3) $pc,
    p(12) p(3) $pc,

    p(0) p(4) $pc,
    p(1) p(4) $pc,
    p(2) p(4) $pc,
    p(3) p(4) $pc,
    p(4) p(4) $pc,
    p(5) p(4) $pc,
    p(6) p(4) $pc,
    p(7) p(4) $pc,
    p(8) p(4) $pc,
    p(9) p(4) $pc,
    p(10) p(4) $pc,
    p(11) p(4) $pc,
    p(12) p(4) $pc,
    p(13) p(4) $pc,

    p(0) p(5) $pc,
    p(1) p(5) $pc,
    p(2) p(5) $pc,
    p(3) p(5) $pc,
    p(4) p(5) $pc,
    p(5) p(5) $pc,
    p(6) p(5) $pc,
    p(7) p(5) $pc,
    p(8) p(5) $pc,
    p(9) p(5) $pc,
    p(10) p(5) $pc,
    p(11) p(5) $pc,
    p(12) p(5) $pc,
    p(13) p(5) $pc,

    p(0) p(6) $pc,
    p(1) p(6) $pc,
    p(2) p(6) $pc,
    p(3) p(6) $pc,
    p(4) p(6) $pc,
    p(5) p(6) $pc,
    p(6) p(6) $pc,
    p(7) p(6) $pc,
    p(8) p(6) $pc,
    p(9) p(6) $pc,
    p(10) p(6) $pc,
    p(11) p(6) $pc,
    p(12) p(6) $pc,
    p(13) p(6) $pc,

    p(0) p(7) $pc,
    p(1) p(7) $pc,
    p(2) p(7) $pc,
    p(3) p(7) $pc,
    p(4) p(7) $pc,
    p(5) p(7) $pc,
    p(6) p(7) $pc,
    p(7) p(7) $pc,
    p(8) p(7) $pc,
    p(9) p(7) $pc,
    p(10) p(7) $pc,
    p(11) p(7) $pc,
    p(12) p(7) $pc,
    p(13) p(7) $pc,

    p(0) p(8) $pc,
    p(1) p(8) $pc,
    p(2) p(8) $pc,
    p(3) p(8) $pc,
    p(4) p(8) $pc,
    p(5) p(8) $pc,
    p(6) p(8) $pc,
    p(7) p(8) $pc,
    p(8) p(8) $pc,
    p(9) p(8) $pc,
    p(10) p(8) $pc,
    p(11) p(8) $pc,
    p(12) p(8) $pc,
    p(13) p(8) $pc,

    p(1) p(9) $pc,
    p(2) p(9) $pc,
    p(3) p(9) $pc,
    p(4) p(9) $pc,
    p(5) p(9) $pc,
    p(6) p(9) $pc,
    p(7) p(9) $pc,
    p(8) p(9) $pc,
    p(9) p(9) $pc,
    p(10) p(9) $pc,
    p(11) p(9) $pc,
    p(12) p(9) $pc,

    p(1) p(10) $pc,
    p(2) p(10) $pc,
    p(3) p(10) $pc,
    p(4) p(10) $pc,
    p(5) p(10) $pc,
    p(6) p(10) $pc,
    p(7) p(10) $pc,
    p(8) p(10) $pc,
    p(9) p(10) $pc,
    p(10) p(10) $pc,
    p(11) p(10) $pc,
    p(12) p(10) $pc,

    p(2) p(11) $pc,
    p(3) p(11) $pc,
    p(4) p(11) $pc,
    p(5) p(11) $pc,
    p(6) p(11) $pc,
    p(7) p(11) $pc,
    p(8) p(11) $pc,
    p(9) p(11) $pc,
    p(10) p(11) $pc,
    p(11) p(11) $pc,

    p(4) p(12) $pc,
    p(5) p(12) $pc,
    p(6) p(12) $pc,
    p(7) p(12) $pc,
    p(8) p(12) $pc,
    p(9) p(12) $pc;
}

.pacman:before {
  box-shadow: 
    p(4) p(0) $pc,
    p(5) p(0) $pc,
    p(6) p(0) $pc,
    p(7) p(0) $pc,
    p(8) p(0) $pc,
    p(9) p(0) $pc,

    p(2) p(1) $pc,
    p(3) p(1) $pc,
    p(4) p(1) $pc,
    p(5) p(1) $pc,
    p(6) p(1) $pc,
    p(7) p(1) $pc,
    p(8) p(1) $pc,
    p(9) p(1) $pc,
    p(10) p(1) $pc,
    p(11) p(1) $pc,

    p(1) p(2) $pc,
    p(2) p(2) $pc,
    p(3) p(2) $pc,
    p(4) p(2) $pc,
    p(5) p(2) $pc,
    p(6) p(2) $pc,
    p(7) p(2) $pc,
    p(8) p(2) $pc,
    p(9) p(2) $pc,
    p(10) p(2) $pc,
    p(11) p(2) $pc,
    p(12) p(2) $pc,

    p(1) p(3) $pc,
    p(2) p(3) $pc,
    p(3) p(3) $pc,
    p(4) p(3) $pc,
    p(5) p(3) $pc,
    p(6) p(3) $pc,
    p(7) p(3) $pc,
    p(8) p(3) $pc,
    p(9) p(3) $pc,
    p(10) p(3) $pc,
    p(11) p(3) $pc,
    p(12) p(3) $pc,

    p(0) p(4) $pc,
    p(1) p(4) $pc,
    p(2) p(4) $pc,
    p(3) p(4) $pc,
    p(4) p(4) $pc,
    p(5) p(4) $pc,
    p(6) p(4) $pc,
    p(7) p(4) $pc,
    p(8) p(4) $pc,
    p(9) p(4) $pc,
    p(10) p(4) $pc,

    p(0) p(5) $pc,
    p(1) p(5) $pc,
    p(2) p(5) $pc,
    p(3) p(5) $pc,
    p(4) p(5) $pc,
    p(5) p(5) $pc,
    p(6) p(5) $pc,
    p(7) p(5) $pc,

    p(0) p(6) $pc,
    p(1) p(6) $pc,
    p(2) p(6) $pc,
    p(3) p(6) $pc,
    p(4) p(6) $pc,

    p(0) p(7) $pc,
    p(1) p(7) $pc,
    p(2) p(7) $pc,
    p(3) p(7) $pc,
    p(4) p(7) $pc,
    p(5) p(7) $pc,
    p(6) p(7) $pc,
    p(7) p(7) $pc,

    p(0) p(8) $pc,
    p(1) p(8) $pc,
    p(2) p(8) $pc,
    p(3) p(8) $pc,
    p(4) p(8) $pc,
    p(5) p(8) $pc,
    p(6) p(8) $pc,
    p(7) p(8) $pc,
    p(8) p(8) $pc,
    p(9) p(8) $pc,
    p(10) p(8) $pc,

    p(1) p(9) $pc,
    p(2) p(9) $pc,
    p(3) p(9) $pc,
    p(4) p(9) $pc,
    p(5) p(9) $pc,
    p(6) p(9) $pc,
    p(7) p(9) $pc,
    p(8) p(9) $pc,
    p(9) p(9) $pc,
    p(10) p(9) $pc,
    p(11) p(9) $pc,
    p(12) p(9) $pc,

    p(1) p(10) $pc,
    p(2) p(10) $pc,
    p(3) p(10) $pc,
    p(4) p(10) $pc,
    p(5) p(10) $pc,
    p(6) p(10) $pc,
    p(7) p(10) $pc,
    p(8) p(10) $pc,
    p(9) p(10) $pc,
    p(10) p(10) $pc,
    p(11) p(10) $pc,
    p(12) p(10) $pc,

    p(2) p(11) $pc,
    p(3) p(11) $pc,
    p(4) p(11) $pc,
    p(5) p(11) $pc,
    p(6) p(11) $pc,
    p(7) p(11) $pc,
    p(8) p(11) $pc,
    p(9) p(11) $pc,
    p(10) p(11) $pc,
    p(11) p(11) $pc,

    p(4) p(12) $pc,
    p(5) p(12) $pc,
    p(6) p(12) $pc,
    p(7) p(12) $pc,
    p(8) p(12) $pc,
    p(9) p(12) $pc;
}

.pacman:after {
  box-shadow:
    p(4) p(0) $pc,
    p(5) p(0) $pc,
    p(6) p(0) $pc,
    p(7) p(0) $pc,
    p(8) p(0) $pc,
    p(9) p(0) $pc,

    p(2) p(1) $pc,
    p(3) p(1) $pc,
    p(4) p(1) $pc,
    p(5) p(1) $pc,
    p(6) p(1) $pc,
    p(7) p(1) $pc,
    p(8) p(1) $pc,
    p(9) p(1) $pc,

    p(1) p(2) $pc,
    p(2) p(2) $pc,
    p(3) p(2) $pc,
    p(4) p(2) $pc,
    p(5) p(2) $pc,
    p(6) p(2) $pc,
    p(7) p(2) $pc,
    p(8) p(2) $pc,

    p(1) p(3) $pc,
    p(2) p(3) $pc,
    p(3) p(3) $pc,
    p(4) p(3) $pc,
    p(5) p(3) $pc,
    p(6) p(3) $pc,
    p(7) p(3) $pc,

    p(0) p(4) $pc,
    p(1) p(4) $pc,
    p(2) p(4) $pc,
    p(3) p(4) $pc,
    p(4) p(4) $pc,
    p(5) p(4) $pc,
    p(6) p(4) $pc,

    p(0) p(5) $pc,
    p(1) p(5) $pc,
    p(2) p(5) $pc,
    p(3) p(5) $pc,
    p(4) p(5) $pc,
    p(5) p(5) $pc,

    p(0) p(6) $pc,
    p(1) p(6) $pc,
    p(2) p(6) $pc,
    p(3) p(6) $pc,
    p(4) p(6) $pc,

    p(0) p(7) $pc,
    p(1) p(7) $pc,
    p(2) p(7) $pc,
    p(3) p(7) $pc,
    p(4) p(7) $pc,
    p(5) p(7) $pc,

    p(0) p(8) $pc,
    p(1) p(8) $pc,
    p(2) p(8) $pc,
    p(3) p(8) $pc,
    p(4) p(8) $pc,
    p(5) p(8) $pc,
    p(6) p(8) $pc,

    p(1) p(9) $pc,
    p(2) p(9) $pc,
    p(3) p(9) $pc,
    p(4) p(9) $pc,
    p(5) p(9) $pc,
    p(6) p(9) $pc,
    p(7) p(9) $pc,

    p(1) p(10) $pc,
    p(2) p(10) $pc,
    p(3) p(10) $pc,
    p(4) p(10) $pc,
    p(5) p(10) $pc,
    p(6) p(10) $pc,
    p(7) p(10) $pc,
    p(8) p(10) $pc,

    p(2) p(11) $pc,
    p(3) p(11) $pc,
    p(4) p(11) $pc,
    p(5) p(11) $pc,
    p(6) p(11) $pc,
    p(7) p(11) $pc,
    p(8) p(11) $pc,
    p(9) p(11) $pc,

    p(4) p(12) $pc,
    p(5) p(12) $pc,
    p(6) p(12) $pc,
    p(7) p(12) $pc,
    p(8) p(12) $pc,
    p(9) p(12) $pc;
}

.ghost {
 box-shadow: 
    p(5) p(0) $gc,
    p(6) p(0) $gc,
    p(7) p(0) $gc,
    p(8) p(0) $gc,

    p(3) p(1) $gc,
    p(4) p(1) $gc,
    p(5) p(1) $gc,
    p(6) p(1) $gc,
    p(7) p(1) $gc,
    p(8) p(1) $gc,
    p(9) p(1) $gc,
    p(10) p(1) $gc,

    p(2) p(2) $gc,
    p(3) p(2) $gc,
    p(4) p(2) $gc,
    p(5) p(2) $gc,
    p(6) p(2) $gc,
    p(7) p(2) $gc,
    p(8) p(2) $gc,
    p(9) p(2) $gc,
    p(10) p(2) $gc,
    p(11) p(2) $gc,

    p(1) p(3) $gc,
    p(2) p(3) $gec,
    p(3) p(3) $gec,
    p(4) p(3) $gc,
    p(5) p(3) $gc,
    p(6) p(3) $gc,
    p(7) p(3) $gc,
    p(8) p(3) $gec,
    p(9) p(3) $gec,
    p(10) p(3) $gc,
    p(11) p(3) $gc,
    p(12) p(3) $gc,

    p(1) p(4) $gec,
    p(2) p(4) $gec,
    p(3) p(4) $gec,
    p(4) p(4) $gec,
    p(5) p(4) $gc,
    p(6) p(4) $gc,
    p(7) p(4) $gec,
    p(8) p(4) $gec,
    p(9) p(4) $gec,
    p(10) p(4) $gec,
    p(11) p(4) $gc,
    p(12) p(4) $gc,

    p(1) p(5) $gpc,
    p(2) p(5) $gpc,
    p(3) p(5) $gec,
    p(4) p(5) $gec,
    p(5) p(5) $gc,
    p(6) p(5) $gc,
    p(7) p(5) $gpc,
    p(8) p(5) $gpc,
    p(9) p(5) $gec,
    p(10) p(5) $gec,
    p(11) p(5) $gc,
    p(12) p(5) $gc,

    p(0) p(6) $gc,
    p(1) p(6) $gpc,
    p(2) p(6) $gpc,
    p(3) p(6) $gec,
    p(4) p(6) $gec,
    p(5) p(6) $gc,
    p(6) p(6) $gc,
    p(7) p(6) $gpc,
    p(8) p(6) $gpc,
    p(9) p(6) $gec,
    p(10) p(6) $gec,
    p(11) p(6) $gc,
    p(12) p(6) $gc,
    p(13) p(6) $gc,

    p(0) p(7) $gc,
    p(1) p(7) $gc,
    p(2) p(7) $gec,
    p(3) p(7) $gec,
    p(4) p(7) $gc,
    p(5) p(7) $gc,
    p(6) p(7) $gc,
    p(7) p(7) $gc,
    p(8) p(7) $gec,
    p(9) p(7) $gec,
    p(10) p(7) $gc,
    p(11) p(7) $gc,
    p(12) p(7) $gc,
    p(13) p(7) $gc,

    p(0) p(8) $gc,
    p(1) p(8) $gc,
    p(2) p(8) $gc,
    p(3) p(8) $gc,
    p(4) p(8) $gc,
    p(5) p(8) $gc,
    p(6) p(8) $gc,
    p(7) p(8) $gc,
    p(8) p(8) $gc,
    p(9) p(8) $gc,
    p(10) p(8) $gc,
    p(11) p(8) $gc,
    p(12) p(8) $gc,
    p(13) p(8) $gc,

    p(0) p(9) $gc,
    p(1) p(9) $gc,
    p(2) p(9) $gc,
    p(3) p(9) $gc,
    p(4) p(9) $gc,
    p(5) p(9) $gc,
    p(6) p(9) $gc,
    p(7) p(9) $gc,
    p(8) p(9) $gc,
    p(9) p(9) $gc,
    p(10) p(9) $gc,
    p(11) p(9) $gc,
    p(11) p(9) $gc,
    p(12) p(9) $gc,
    p(13) p(9) $gc,

    p(0) p(10) $gc,
    p(1) p(10) $gc,
    p(2) p(10) $gc,
    p(3) p(10) $gc,
    p(4) p(10) $gc,
    p(5) p(10) $gc,
    p(6) p(10) $gc,
    p(7) p(10) $gc,
    p(8) p(10) $gc,
    p(9) p(10) $gc,
    p(10) p(10) $gc,
    p(11) p(10) $gc,
    p(11) p(10) $gc,
    p(12) p(10) $gc,
    p(13) p(10) $gc,

    p(0) p(11) $gc,
    p(1) p(11) $gc,
    p(3) p(11) $gc,
    p(4) p(11) $gc,
    p(5) p(11) $gc,
    p(8) p(11) $gc,
    p(9) p(11) $gc,
    p(10) p(11) $gc,
    p(12) p(11) $gc,
    p(13) p(11) $gc,

    p(0) p(12) $gc,
    p(4) p(12) $gc,
    p(5) p(12) $gc,
    p(8) p(12) $gc,
    p(9) p(12) $gc,
    p(13) p(12) $gc;
}

.ghost.runaway {
 box-shadow: 
    p(5) p(0) $grc,
    p(6) p(0) $grc,
    p(7) p(0) $grc,
    p(8) p(0) $grc,

    p(3) p(1) $grc,
    p(4) p(1) $grc,
    p(5) p(1) $grc,
    p(6) p(1) $grc,
    p(7) p(1) $grc,
    p(8) p(1) $grc,
    p(9) p(1) $grc,
    p(10) p(1) $grc,

    p(2) p(2) $grc,
    p(3) p(2) $grc,
    p(4) p(2) $grc,
    p(5) p(2) $grc,
    p(6) p(2) $grc,
    p(7) p(2) $grc,
    p(8) p(2) $grc,
    p(9) p(2) $grc,
    p(10) p(2) $grc,
    p(11) p(2) $grc,

    p(1) p(3) $grc,
    p(2) p(3) $grc,
    p(3) p(3) $grc,
    p(4) p(3) $grc,
    p(5) p(3) $grc,
    p(6) p(3) $grc,
    p(7) p(3) $grc,
    p(8) p(3) $grc,
    p(9) p(3) $grc,
    p(10) p(3) $grc,
    p(11) p(3) $grc,
    p(12) p(3) $grc,

    p(1) p(4) $grc,
    p(2) p(4) $grc,
    p(3) p(4) $grc,
    p(4) p(4) $gec,
    p(5) p(4) $gec,
    p(6) p(4) $grc,
    p(7) p(4) $grc,
    p(8) p(4) $gec,
    p(9) p(4) $gec,
    p(10) p(4) $grc,
    p(11) p(4) $grc,
    p(12) p(4) $grc,

    p(1) p(5) $grc,
    p(2) p(5) $grc,
    p(3) p(5) $grc,
    p(4) p(5) $gec,
    p(5) p(5) $gec,
    p(6) p(5) $grc,
    p(7) p(5) $grc,
    p(8) p(5) $gec,
    p(9) p(5) $gec,
    p(10) p(5) $grc,
    p(11) p(5) $grc,
    p(12) p(5) $grc,

    p(0) p(6) $grc,
    p(1) p(6) $grc,
    p(2) p(6) $grc,
    p(3) p(6) $grc,
    p(4) p(6) $grc,
    p(5) p(6) $grc,
    p(6) p(6) $grc,
    p(7) p(6) $grc,
    p(8) p(6) $grc,
    p(9) p(6) $grc,
    p(10) p(6) $grc,
    p(11) p(6) $grc,
    p(12) p(6) $grc,
    p(13) p(6) $grc,

    p(0) p(7) $grc,
    p(1) p(7) $grc,
    p(2) p(7) $grc,
    p(3) p(7) $grc,
    p(4) p(7) $grc,
    p(5) p(7) $grc,
    p(6) p(7) $grc,
    p(7) p(7) $grc,
    p(8) p(7) $grc,
    p(9) p(7) $grc,
    p(10) p(7) $grc,
    p(11) p(7) $grc,
    p(12) p(7) $grc,
    p(13) p(7) $grc,

    p(0) p(8) $grc,
    p(1) p(8) $grc,
    p(2) p(8) $gec,
    p(3) p(8) $gec,
    p(4) p(8) $grc,
    p(5) p(8) $grc,
    p(6) p(8) $gec,
    p(7) p(8) $gec,
    p(8) p(8) $grc,
    p(9) p(8) $grc,
    p(10) p(8) $gec,
    p(11) p(8) $gec,
    p(12) p(8) $grc,
    p(13) p(8) $grc,

    p(0) p(9) $grc,
    p(1) p(9) $gec,
    p(2) p(9) $grc,
    p(3) p(9) $grc,
    p(4) p(9) $gec,
    p(5) p(9) $gec,
    p(6) p(9) $grc,
    p(7) p(9) $grc,
    p(8) p(9) $gec,
    p(9) p(9) $gec,
    p(10) p(9) $grc,
    p(11) p(9) $grc,
    p(11) p(9) $grc,
    p(12) p(9) $gec,
    p(13) p(9) $grc,

    p(0) p(10) $grc,
    p(1) p(10) $grc,
    p(2) p(10) $grc,
    p(3) p(10) $grc,
    p(4) p(10) $grc,
    p(5) p(10) $grc,
    p(6) p(10) $grc,
    p(7) p(10) $grc,
    p(8) p(10) $grc,
    p(9) p(10) $grc,
    p(10) p(10) $grc,
    p(11) p(10) $grc,
    p(11) p(10) $grc,
    p(12) p(10) $grc,
    p(13) p(10) $grc,

    p(0) p(11) $grc,
    p(1) p(11) $grc,
    p(3) p(11) $grc,
    p(4) p(11) $grc,
    p(5) p(11) $grc,
    p(8) p(11) $grc,
    p(9) p(11) $grc,
    p(10) p(11) $grc,
    p(12) p(11) $grc,
    p(13) p(11) $grc,

    p(0) p(12) $grc,
    p(4) p(12) $grc,
    p(5) p(12) $grc,
    p(8) p(12) $grc,
    p(9) p(12) $grc,
    p(13) p(12) $grc;
}
!

JS 

              
                const app = new Vue({
  el:'#app',
  
  data: {
    animate_ghost: false,
    animate_pacman: false,
    logged_in: false,
    password_entered: '',
    password_invalid: false,
    password_match: false,
    password_stored: 'pacman',
    password_tries: 0
  },
  
  computed: {    
    transitionPacman() {
      return this.password_match ? 'pacman-success' : 'pacman-invalid';
    }
  },
  
  methods: {
    checkPassword() {
      this.animate_ghost = true;
      this.animate_pacman = false;
      
      if (this.password_entered !== this.password_stored) {
        this.password_invalid = true;
        this.$refs.start.value = 'Incorrect Password!'
      } else {
        this.$refs.start.value = 'Logging in';
      }
    },
    
    disableInput() {
      return this.animate_pacman || this.animate_ghost;
    },
    
    resetAnimation() {
      this.animate_ghost = false;
      this.password_invalid = false;
      this.password_entered = '';
      this.password_tries++;
            
      if (this.password_match) {
        this.logged_in = true;
      } else {
        this.$refs.start.value = 'Try Again';
        if (this.password_tries === 2) this.$refs.start.value = 'Try "pacman"';
      }
            
      setTimeout(() => this.$refs.password.focus(), 100);
    },
    
    runPacman(e) {
      e.preventDefault()
      this.animate_pacman = true;
      this.$refs.start.value = 'Checking...';
    },
    
    startOver() {
      this.password_entered = '';
      this.password_tries = 0;
      this.password_match = false;
      this.logged_in = false;
    }
  },
  
  watch: {
    password_entered() {
      if (this.password_entered === this.password_stored) this.password_match = true;
    }
  },
  
  mounted() {
    this.$refs.name.focus();
  }
})
!
999px

Console