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HTML 

              
                <input type="checkbox" id="show-grid">
<label for="show-grid">GRID</label>
<button id="mode-type">MODE</button>
<div class="container">
	<div class="stars"></div>
	<div class="stars"></div>
	<div class="card" id="star-card"></div>
	<div class="arrows">
		<span></span>
		<span></span>
		<span></span>
		<span></span>
		<span></span>
		<span></span>
		<span></span>
		<span></span>
	</div>
</div>
!

CSS 

              
                body {
	overflow: hidden;
	margin: 0;
	padding: 0;
}

* {
	box-sizing: border-box;
	position: absolute;
	transform-style: preserve-3d;
}

*:before, *:after {
	box-sizing: border-box;
	transform-style: preserve-3d;
	position: absolute;
	content: "";
}

body {
	margin: 0;
	padding: 0;
	width: 100vw;
	height: 100vh;
	overflow: hidden;
	perspective: 50vmin;
	background-size: 100vw 100vh;
	background-image: 
		radial-gradient(#0000, #673ab72e), 
		linear-gradient(-90deg, #2000587d, #000, #9c27b02b), 
		linear-gradient(0deg, #ff98002e, #000, #8bc34a5e);
	background-color: #000;
	box-shadow: 0 0 150vmin 11vmin #000 inset;
}

body:before {
	width: 100vw;
	height: 100vh;
	background: 
		radial-gradient(#0000, #0a123a), 
		linear-gradient(180deg, #2000587d, #000, #9c27b02b), 
		linear-gradient(0deg, #ff980054, #000, #009688ba);
}

/* Grid */
#show-grid { display: none; }
label[for=show-grid] {
	position: absolute;
	z-index: 5;
	background: #f004;
	cursor: pointer;
	bottom: 20px;
	left: 50%;
	width: 45px;
	height: 45px;
	transform: translateX(calc(-50% - 115px));
	font-family: Arial, serif;
	font-size: 11px;
	text-align: center;
	box-shadow: 0 0 0 2px #fff1;
	background: #0006;
	padding: 8px 0;
	border-radius: 2px;
	color: #fff;
	display: flex;
	flex-direction: column;
	align-items: center;
	justify-content: space-evenly;
	mix-blend-mode: overlay;
}
label[for=show-grid]:hover {
	background: #fff4;
}
label[for=show-grid]:before {
	font-size: 9px;
	content: "SHOW";
	position: relative;
}
#show-grid:checked + label[for=show-grid]:before {
	content: "HIDE";
}



/*** Mode Type ***/

#mode-type {
	position: fixed;
	left: 50%;
	transform: translateX(-50%);
	bottom: 20px;
	border: 0;
	background: #0006;
	color: #ccc;
	font-weight: bold;
	padding: 15px;
	cursor: pointer;
	z-index: 3;
	font-size: 10px;
	line-height: 15px;
	border-radius: 2px;
	min-width: 175px;
	text-align: right;
	box-shadow: 0 0 0 2px #fff1;
	mix-blend-mode: overlay;
}

#mode-type:before {
	position: relative;
	margin-right: 10px;
	content: "FORWARD";
	font-size: 18px;
	color: #fff;
	float: left;
	font-weight: normal;
}

#mode-type.backward:before {
	content: "BACKWARD";
}

#mode-type:hover {
	background: #fff4;
	color: #fff;
}

#mode-type:hover:before {
	color: #fff;
	content: "CHANGE";
	text-indent: 5px;
	text-shadow: 0 0 1px #000;
}

#mode-type:after {
	content: "";
	display: inline-block;
	float: right;
	position: absolute;
	background: 
		linear-gradient(-45deg, #cdcdcd 4px, #fff0 0 calc(100% - 4px), #cdcdcd 0 100%),
		linear-gradient(45deg, #cdcdcd 4px, #fff0 0 calc(100% - 4px), #cdcdcd 0 100%),
		linear-gradient(-45deg, #fff0 calc(50% - 2px), #fff calc(50% - 1px) calc(50% + 1px), #fff0 calc(50% + 2px)),
		linear-gradient(-45deg, #fff0 calc(50% - 2px), #fff calc(50% - 1px) calc(50% + 1px), #fff0 calc(50% + 2px)),
		linear-gradient(45deg, #fff0 calc(50% - 2px), #fff calc(50% - 1px) calc(50% + 1px), #fff0 calc(50% + 2px)),
		linear-gradient(45deg, #fff0 calc(50% - 2px), #fff calc(50% - 1px) calc(50% + 1px), #fff0 calc(50% + 2px)),
		#0006;
	background-repeat: no-repeat;
	background-size: 22px 22px, 22px 22px, 9px 9px, 9px 9px, 9px 9px, 9px 9px, 100% 100%;
	background-position: 11px 11px, 11px 11px, 24px 11px, 11px 24px, 11px 11px, 24px 24px, 0 0;
	width: 45px;
	height: 45px;
	right: -50px;
	top: 0px;
	box-shadow: 0 0 0 2px #fff1;
	border-radius: 2px;
}

#mode-type.backward:after {
	background: 
		linear-gradient(135deg, #fff0 0 4px, #fff 4px 100%),
		linear-gradient(225deg, #fff0 0 4px, #fff 4px 100%),
		linear-gradient(315deg, #fff0 0 4px, #fff 4px 100%),
		linear-gradient(45deg, #fff0 0 4px, #fff 4px 100%),
		linear-gradient(-45deg, #fff0 calc(50% - 2px), #fff calc(50% - 1px) calc(50% + 1px), #fff0 calc(50% + 2px)),
		linear-gradient(-45deg, #fff0 calc(50% - 2px), #fff calc(50% - 1px) calc(50% + 1px), #fff0 calc(50% + 2px)),
		linear-gradient(45deg, #fff0 calc(50% - 2px), #fff calc(50% - 1px) calc(50% + 1px), #fff0 calc(50% + 2px)),
		linear-gradient(45deg, #fff0 calc(50% - 2px), #fff calc(50% - 1px) calc(50% + 1px), #fff0 calc(50% + 2px)),
		#0006;
	background-repeat: no-repeat;
	background-size: 6px 6px, 6px 6px, 6px 6px, 6px 6px, 8px 8px, 8px 8px, 8px 8px, 8px 8px, 100% 100%;
	background-position: 14px 14px, 24px 14px, 24px 24px, 14px 24px, 25px 11px, 11px 25px, 11px 11px, 25px 25px, 0 0;
}



.container {
	display: flex;
	justify-content: center;
	align-items: center;
	height: 100vh;
}

/*** Stars ***/
.stars {
	position: absolute;
	width: 100vw;
	height: 100vh;
}

.stars:before, .stars:after {
	width: 200vw;
	height: 200vh;
	content: "";
	background: #fff0;
	border-radius: 100%;
	background-image: repeating-conic-gradient(#FFF8 0%, transparent .0002%, transparent .075%, transparent .65%), repeating-conic-gradient(#FFF 0%, transparent .0004%, transparent 0.05%, transparent .495%);
	transform: translateZ(-40vmin);
	opacity: 0;
	animation: stars 4s ease-in-out 0s infinite;
	z-index: 1;
	left: -50vw;
	top: -50vh;
}

.stars:after {
	animation-name: stars2;
	animation-delay: 1s;
}

button#mode-type.backward + .container .stars:before,
button#mode-type.backward + .container .stars:after {
	animation-direction: reverse;
}

@keyframes stars {
	0% { transform: translateZ(-40vmin); opacity: 0; }
	30%, 70% { opacity: 1; }
	90% { opacity: 1;}
	100% { transform: translateZ(40vmin) rotate(15deg); opacity: 0; }
}

@keyframes stars2 {
	0% { transform: translateZ(-40vmin) rotate(180deg); opacity: 0; }
	30%, 70% { opacity: 1; }
	90% { opacity: 1;}
	100% { transform: translateZ(40vmin) rotate(195deg); opacity: 0; }
}

.stars + .stars::before {
	animation-delay: 2s;
}

.stars + .stars::after {
	animation-delay: 3s;
}


/*** Card ***/
.card {
	width: 100vw;
	height: 100vh;
	display: flex;
	align-items: center;
	justify-content: center;
	cursor: pointer;
	position: relative;
	overflow: hidden;
}

#show-grid:checked ~ .container .card {
	background:
		linear-gradient(0deg, #fff0 calc(33.33% - 2px), #fff1 33.33%, #fff0 calc(33.33% + 2px) calc(66.66% - 2px), #fff1 66.66%, #fff0 calc(66.66% + 2px) 100%),
		linear-gradient(90deg, #fff0 calc(33.33% - 2px), #fff1 33.33%, #fff0 calc(33.33% + 2px) calc(66.66% - 2px), #fff1 66.66%, #fff0 calc(66.66% + 2px) 100%);
}



/* Arrows */
.arrows {
	position: absolute;
	width: 100%;
	height: 100%;
	opacity: 0.1;
	display: none;
}

#show-grid:checked ~ .container .arrows {
	display: block;
}

.arrows span {
	position: absolute;
	width: 14px;
	height: 16px;
	background: 
		conic-gradient(from 90deg at 0% 0%, #fff 0 25%, #fff0 0 100%), 
		conic-gradient(from 135deg at 50% 0%, #fff 0 25%, #fff0 0 100%);
	left: 25%;
	top: 25%;
	background-repeat: no-repeat;
	background-size: 7px 9px, 14px 8px ;
	background-position: 4px 7px, 0 0;
	transform: rotate(-45deg);
}

.arrows span:nth-child(2) { 
	transform: rotate(0deg);	
	left: 50%;
}

.arrows span:nth-child(3) { 
	transform: rotate(45deg);	
	left: 73%;
}

.arrows span:nth-child(4) { 
	transform: rotate(90deg);	
	left: 73%;
	top: 50%;
}

.arrows span:nth-child(5) { 
	transform: rotate(135deg);	
	left: 73%;
	top: 73%;
}

.arrows span:nth-child(6) { 
	transform: rotate(180deg);	
	left: 50%;
	top: 73%;
}

.arrows span:nth-child(7) { 
	transform: rotate(225deg);	
	top: 73%;
}

.arrows span:nth-child(8) { 
	transform: rotate(270deg);	
	top: 50%;
}

#mode-type.backward ~ .container .arrows span:nth-child(1) { 
	transform: rotate(135deg);	
}
#mode-type.backward ~ .container .arrows span:nth-child(2) { 
	transform: rotate(180deg);	
}
#mode-type.backward ~ .container .arrows span:nth-child(3) { 
	transform: rotate(225deg);	
}
#mode-type.backward ~ .container .arrows span:nth-child(4) { 
	transform: rotate(270deg);	
}
#mode-type.backward ~ .container .arrows span:nth-child(5) { 
	transform: rotate(315deg);	
}
#mode-type.backward ~ .container .arrows span:nth-child(6) { 
	transform: rotate(0deg);	
}
#mode-type.backward ~ .container .arrows span:nth-child(7) { 
	transform: rotate(45deg);	
}
#mode-type.backward ~ .container .arrows span:nth-child(8) { 
	transform: rotate(90deg);	
}
!

JS 

              
                let stars = [];
modeType = 0;

function setup() {
  let canvas = createCanvas(window.innerWidth, window.innerHeight);
  canvas.parent('star-card');
}

function draw() {
  clear();
  for (let i = 0; i < stars.length; i++) {
    let star = stars[i];
    star.update();
    star.display();
  }
}

function mouseMoved() {
  if (mouseX >= 0 && mouseY >= 0 && mouseX <= width && mouseY <= height) {
    let star = new Star(mouseX, mouseY);
    stars.push(star);
  } 
}

class Star {
  constructor(x, y) {
		let w3 = width / 3;
		let h3 = height / 3;
    this.x = x;
    this.y = y;
    this.alpha = 255;
    this.speed = random(2, 5);
		//this.angle = random(TWO_PI);
		//MODES		
		if(modeType==0){ //forward
    	this.radius = random(1, 5); 
			//forward grid
			if (mouseY <= h3) {   // top row
			 if (mouseX <= w3 * 3) { // right col
				this.angle = (random(TWO_PI) / 4) + 4.75;
			 }
			 if (mouseX <= w3 * 2) { // middle col
				this.angle = (random(TWO_PI) / 4) + 4;
			 }
			 if (mouseX <= w3) { // left col
				this.angle = (random(TWO_PI) / 4) + 3.1;
			 }
			} else if (mouseY >= height / 3 * 2) { // bottom row
				if (mouseX <= w3 * 3) { // right col
					this.angle = (random(TWO_PI) / 4) + 6.3;
				}
				if (mouseX <= w3 * 2) { // middle col
					this.angle = (random(TWO_PI) / 4) + 0.75;
				}
				if (mouseX <= w3) { // left col
					this.angle = (random(TWO_PI) / 4) + 1.55;
				}
			} else { // middle row
				if (mouseX <= w3 * 3) { // right
					this.angle = (random(TWO_PI) / 4) + 5.5;
				}
				if (mouseX <= w3 * 2) { // middle
					this.angle = random(TWO_PI);
				}
				if (mouseX <= w3) { // left
					this.angle = (random(TWO_PI) / 4) + 2.35;
				}
			}
		} else { // backward
			this.radius = random(5, 9); 
			//backward grid
			if (mouseY <= h3) {   // top row
			 if (mouseX <= w3 * 3) { // right col
				this.angle = (random(TWO_PI) / 4) + 1.5;
			 }
			 if (mouseX <= w3 * 2) { // middle col
				this.angle = (random(TWO_PI) / 4) + 0.9;
			 }
			 if (mouseX <= w3) { // left col
				this.angle = (random(TWO_PI) / 4) + 6.3;
			 }
			} else if (mouseY >= height / 3 * 2) { // bottom row
				if (mouseX <= w3 * 3) { // right col
					this.angle = (random(TWO_PI) / 4) + 3.15;
				}
				if (mouseX <= w3 * 2) { // middle col
					this.angle = (random(TWO_PI) / 4) + 4;
				}
				if (mouseX <= w3) { // left col
					this.angle = (random(TWO_PI) / 4) + 4.7;
				}
			} else { // middle row
				if (mouseX <= w3 * 3) { // right col
					this.angle = (random(TWO_PI) / 4) + 2.3;
				}
				if (mouseX <= w3 * 2) { // middle col
					this.angle = random(TWO_PI);
					this.speed = random(1, 2);
				}
				if (mouseX <= w3) { // left col
					this.angle = (random(TWO_PI) / 4) + 5.5;
    			this.speed = random(2, 5);
				}
			}
		}
  } // constructor

  update() {
    this.x += cos(this.angle) * this.speed;
    this.y += sin(this.angle) * this.speed;
    this.alpha -= 1;
		this.radius += 0.01;
		if(modeType==0){
			this.radius += 0.01;
		} else {
			this.radius -= 0.1;
		}
    if (this.alpha <= 0 || this.radius > 20 || this.radius < 0) {
      stars.splice(stars.indexOf(this), 1);
    }
		let rr = random(255);
		let gg = random(255);
		let bb = random(255);
    fill(rr, gg, bb);
  }

  display() {
    noStroke();
    push();
    translate(this.x, this.y);
    rotate(frameCount * 0.02);
    star(0, 0, this.radius * 5, this.radius * 0.5, 100); // change the multiplier here to change the star radius, or change the last number to modify the number of points 
    pop();
  }
}

function star(x, y, radius1, radius2, npoints) {
  let angle = TWO_PI / npoints;
  let halfAngle = angle / 2.0;
  beginShape();
  for (let a = 0; a < TWO_PI; a += angle) {
    let sx = x + cos(a) * radius2;
    let sy = y + sin(a) * radius2;
    vertex(sx, sy);
    sx = x + cos(a + halfAngle) * radius1;
    sy = y + sin(a + halfAngle) * radius1;
    vertex(sx, sy);
  }
  endShape(CLOSE);
}

document.querySelector('#mode-type').addEventListener('click', function() {
	 (modeType == 0) ? modeType = 1 : modeType = 0;
	this.classList.toggle('backward');
});
!
999px

Console