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HTML 

              
                <nav>
  <div class="pull-left"><img src="https://s10.postimg.org/7jxzp3zut/score.png"/><span class="myTopScore">0 </span><img src="https://s10.postimg.org/i2xzea2it/shots.png"/><span class="hits">0</span></div>
  <div class="pull-right"><img src="https://s12.postimg.org/jkvpa0pw9/gun_01.png" class="active gun-2"/><img src="https://s10.postimg.org/fmw60fkg5/gun_02.png" class="gun-1"/>
    <button class="btn btn-stop">Stop</button>
    <button class="btn btn-start">start</button>
  </div>
  <div class="time">45</div>
</nav>
<div class="holder">
  <div class="egg"></div>
  <div class="egg"></div>
  <div class="egg"></div>
  <div class="egg"></div>
  <div class="egg"></div>
  <div class="egg"></div>
  <div class="egg"></div>
  <div class="egg"></div>
  <div class="egg"></div>
</div>
<!-- Game-->
<div class="overlay show">
  <div class="popup text-center">
    <div class="pop-header"><a class="close pop-close">x</a></div>
    <h3>Shoot easter bunny..!</h3>
    <button class="btn mtl pop-close btn-start">Start</button>
  </div>
</div>
<!-- Game Over-->
<div id="gameOver" class="overlay">
  <div class="popup">
    <div class="pop-header"><a class="close pop-close">x</a></div>
    <h4>Top Score<span class="pull-right myTopScore">0</span></h4>
    <h4>Score<span class="pull-right hits">0</span></h4>
    <div class="text-center">
      <button class="btn pop-close btn-start">Restart</button>
    </div>
  </div>
</div>
!

CSS 

              
                @import "compass";
*, *:after, *:before{
  @include box-sizing(border-box);
}
body{
background: url(https://stutzmansfinest.com/wp-content/uploads/2015/09/wood-background-design-decorating-7.jpg);
    background-size: cover;
    padding: 0;
  padding: 0;
  margin: 0;
  font-family: Arial, "Helvetica Neue", Helvetica, sans-serif;
  @include user-select(none);
}



nav{
  overflow-y: auto;
  padding: 10px 15px 5px;
  background: #ffd54f;
  margin: 0 0 35px;
  color: #000;
  display: block;
  position: relative;
  overflow: visible;
  height: 55px;
  vertical-align: middle;
  min-width: 600px;
  
  
  &:after {
    content: '';
    display: table;
    clear: both;
  }
   span {
      padding: 0 24px;
      font-size: 30px;
      vertical-align: middle;
  }
  img{
    vertical-align: middle;
  }
  
  .btn{
    margin-left: 15px;
  }
  .pull-right{
    img{
      margin:0 10px;
      cursor: pointer;
      opacity: .5;
      &.active{
        opacity: 1;
        cursor: auto;
      }
    }
  }
  
}

.pull-left{float: left;}
.pull-right{float: right;}
.text-center{text-align: center;}
.overlay {
    position: fixed;
    background:rgba(0, 0, 0, 0.5);
    visibility: hidden;
    z-index: 1000;
  left: 0;top: 0;right: 0;bottom: 0;
  
}
.overlay.show {
  visibility: visible;
}
.btn{
  border:none;
  height: 40px;
  color: #fff;
  width: 120px;
  background:#1565C0;
  text-transform: uppercase;
  border-radius: 20px;
  font-size: 15px;
  cursor: pointer;
}
.btn-stop{
  display: none;
}
.popup {
    position: absolute;
    max-width: 500px;
    background: #fff;
    padding: 25px;
    width: 100%;
    left: 0;
    right: 0;
    margin: auto;
    top: 0px;
    transition: .3s;
    opacity: 0;
}
.show > .popup {
  top: 150px;
  opacity: 1;
}

.popup h4{
    text-align: left;
    background: #E5FBFA;
    padding: 6px 10px;
    color: #333;
}
.pop-header {
    position: absolute;
    top: -120px;
    text-align: center;
    width: 100%;
    height: 150px;
    left: 0;
    z-index: 5;
  background: url('https://s10.postimg.org/67gan82f9/bunni_popup.png') no-repeat;
  background-position: center 0;
      
}
.pop-header .close{
  position: absolute;
  color: #000;
  right: 0;
  bottom: -8px;
  font-size: 22px;
  cursor: pointer;
  width: 30px;
  text-align: center;
}
.pop-body {
    max-height: 300px;
    overflow-y: auto;
}
.time{
  display: block;
  position: absolute;
  background: #ffd54f;
  left: 0;
  right: 0;
  border: 4px solid #fff;
  border-radius: 50%;
  width: 55px;
  height: 55px;
  line-height: 47px;
  font-size: 22px;
  margin: auto;
  bottom: -5px;
  box-shadow: 0 0 0 10px #FFD54F;
  text-align: center;
  
  &::after{
    content: '';
    position: absolute;
    left: -4px;
    top: -4px;
    @extend .time;
    background: none;
    border-top-color: #000;
  }
  &.start::after{
    @include  animation(rotate 1s linear infinite );
  }
}




.holder{
  width: 600px;
  margin: auto;
  cursor: url(http://www.presentation-assistant.com/resources/pointers/target.png), cell;
  text-align: center;
  
  &.gun-1{
    cursor: url(http://static.wixstatic.com/media/d37920_ef1a27f43851431d9c51d82fc164afd1.png_srz_43_44_85_22_0.50_1.20_0.00_png_srz), crosshair;
  }
  
}
.egg {
	position: relative;
	display: inline-block;
	width:120px;
  height:160px;
  margin:20px 25px;
  position: relative;
  &::after{
    content: '';
    position: absolute;
    z-index: 50;
      left: 0;
      top: 0;
      height: 100%;
      width: 100%;
      background:#f7f7f7;
  @include  border-radius(50% / 55% 55% 45% 45%);
  @include box-shadow(1em 1em 2em -1em rgba(0, 0, 0, .1),
    					.1em .2em .7em -.1em rgba(0, 0, 0, .2),
    					-.5em -1.5em 3em rgba(0, 0, 0, .15) inset,
    					-.1em -.1em 1.5em rgba(0, 0, 0, .2) inset);
  }

  
  &:nth-child(1)::after{ background: #05C1C3; }  
  &:nth-child(2)::after{ background: #FD5151; }  
  &:nth-child(3)::after{ background: #FEF049; }  
  &:nth-child(4)::after{ background: #FC8637; }  
  &:nth-child(5)::after{ background: #A6ED95; }  
  &:nth-child(6)::after{ background: #6196CA; }  
  &:nth-child(7)::after{ background: #F91C5C; }  
  &:nth-child(8)::after{ background: #EF8702; }  
  &:nth-child(9)::after{ background: #F76AB7; } 
  
}

.bunny , .bunny-out{
  position: absolute;
  width: 100px;
  height: 127px;
  left: -70px;
  margin: auto;
  top: -50px;
  z-index: 5;
  &::after{
      content: '';
      background: url("https://s10.postimg.org/p8pqgqbm1/bunni_1.png") no-repeat;
      width: 100px;
      height: 127px;
      display: block;
      left:0;
      right:0;
      background-size: 100% auto;
      @include rotate(-35deg);
    }
}



.bunny-out {
  opacity: 0;
  -webkit-animation: headOut 0.5s ease-in;
  animation: headOut 0.5s ease-in;

  
  &::after{
  background-image: url("https://s10.postimg.org/pb9m3kf9l/bunni_2.png");
}
}








.shot{
  background: url(http://cliparts.co/cliparts/gie/qBd/gieqBd8id.png);
  z-index: 150;
  height: 100px;
  width: 100px;
  background-size: 100% auto;
  position: absolute;
  @include animation( shot .3s );
  opacity: 0;
}

@include keyframes(shot){
  0%{@include scale(0); opacity: 1;}
  50%{@include scale(1.5)}
}

@include keyframes(headOut){
    
0% , 25%{ @include transform(translate(0 , 0)  rotate(-35deg)); opacity: 1; }
25%{ @include transform(translate(-25px, -15px) rotate(-35deg))}
100%{ @include transform(translate(-50px, 150px)  rotate(-170deg)); opacity: 0;}
  
}

@include keyframes(rotate){
    from {@include rotate(0deg);}
    to {@include rotate(360deg);}
}
!

JS 

              
                
var hits = 0,
 bunnyAppear=null,
 time = 45,
 gameSpeed = 1000,
 TimeOut =null,
 speed=null,
 topScore = hits;

// Bunny appear
var bunnyFunction=function(){
    var bunny = '<div class="bunny"></div>';
    var x = Math.floor((Math.random() * 9));
     $('.egg').empty();
     $('.run').text(gameSpeed);
    $('.egg:eq('+x+')').append(bunny);
    clearInterval(bunnyAppear);
    bunnyAppear = setInterval(bunnyFunction, gameSpeed);
}


// shoot bunny
$('.egg').on('click', '.bunny' , function(){
  $('.hits').text(++hits);
  topScore < hits && (topScore = hits);
  $(".myTopScore").text(topScore);
  $(this).removeClass('bunny').addClass('bunny-out');

});

// Bunny   start
$('.btn-start').click(function(){
   time = 45;
   hits = 0;
   gameSpeed = 1000;
  $('.hits').text(hits); // hits count
  $('.btn-start').hide();
  $('.btn-stop').show();
  $('.time').addClass('start');

  speed =  setInterval(function(){
    gameSpeed = gameSpeed - 9;
  }, 500);

   // Bunny appear
   bunnyAppear = setInterval(bunnyFunction, gameSpeed);


    // Timer
   timeOut =  setInterval(function(){
      $('.time').text(--time);
      $('.shot').remove();

      if( time <= 0){
        bunnyStop()
        $('#gameOver').addClass('show');
      }

    }, 1000);

  // shot
  $('.holder').click(function(event){
      $(this).append('<div class="shot"></div>')
      $('.shot').css({
          left: event.pageX,
          top: event.pageY
      });
  });


});
// bunny stop
function bunnyStop(){
          clearInterval(bunnyAppear);
        clearInterval(timeOut);
        clearInterval(speed);
        
        $('.btn-start').show();
        $('.btn-stop').hide();
         $('.time').removeClass('start');
}

 $('.btn-stop').click(function(){
   bunnyStop()
 });

$('.pull-right  img').click(function(){
    $('.pull-right img').removeClass('active');
    $(this).addClass('active');
    var pointer = $(this).attr('class');
    $('.holder').removeClass('gun-2 , gun-1').addClass(pointer)
    
});

// popup
$('.pop-close').click(function(event){
  $(this).closest('.overlay').removeClass('show')
});
!
999px

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