diff --git a/src/client/audio.ts b/src/client/audio.ts
new file mode 100644
index 00000000..42e01526
--- /dev/null
+++ b/src/client/audio.ts
@@ -0,0 +1,12 @@
+
+import * as c from "./constants.js"
+
+export const soundPong: HTMLAudioElement[] = [];
+
+for	(let i = 0; i <= 32; i++) {
+	soundPong.push(new Audio("http://localhost:8080/sound/pong/"+i+".mp3"));
+	soundPong[i].volume = c.soundPongVolume;
+}
+
+export const soundRoblox = new Audio("http://localhost:8080/sound/roblox-oof.mp3");
+soundRoblox.volume = c.soundRobloxVolume;
diff --git a/src/client/class/RectangleClient.ts b/src/client/class/RectangleClient.ts
index e0e83133..ad5b3da4 100644
--- a/src/client/class/RectangleClient.ts
+++ b/src/client/class/RectangleClient.ts
@@ -2,6 +2,8 @@
 import {Vector, VectorInteger} from "../../shared_js/class/Vector.js";
 import {Component, GraphicComponent, Moving} from "../../shared_js/class/interface.js";
 import { Rectangle, MovingRectangle, Racket, Ball } from "../../shared_js/class/Rectangle.js";
+import {soundPong, soundRoblox} from "../audio.js"
+import { random } from "../utils.js";
 
 function updateRectangle(this: RectangleClient) {
 	this.ctx.fillStyle = this.color;
@@ -87,6 +89,14 @@ class BallClient extends Ball implements GraphicComponent {
 		this.update = updateRectangle;
 		this.clear = clearRectangle;
 	}
+	bounce(collider?: Rectangle) {
+		this._bounceAlgo(collider);
+		soundPong[ Math.floor(random(0, soundPong.length)) ].play();
+	}
+	/* protected _bouncePlayer(collider: Racket) {
+		this._bouncePlayerAlgo(collider);
+		soundRoblox.play();
+	} */
 }
 
 function updateLine(this: Line) {
diff --git a/src/client/constants.ts b/src/client/constants.ts
index df5c8e68..c724e89a 100644
--- a/src/client/constants.ts
+++ b/src/client/constants.ts
@@ -8,3 +8,5 @@ export	const gridSize = Math.floor(w/500);
 
 // min interval on Firefox seems to be 15. Chrome can go lower.
 export	const gameLoopIntervalMS = 15; // millisecond
+export	const soundRobloxVolume = 0.3; // between 0 and 1
+export	const soundPongVolume = 0.3; // between 0 and 1
diff --git a/src/client/gameLoop.ts b/src/client/gameLoop.ts
index a6028ec3..04d4d846 100644
--- a/src/client/gameLoop.ts
+++ b/src/client/gameLoop.ts
@@ -1,3 +1,4 @@
+import {gc} from "./global.js";
 import * as d from "./draw.js";
 import {handleInput} from "./handleInput.js";
 
@@ -19,7 +20,7 @@ function gameLoop()
 	handleInput(delta_time);
 
 	// prediction
-	// gc.ball.moveAndBounce(delta_time, [gc.wallTop, gc.wallBottom, gc.playerLeft, gc.playerRight]);
+	gc.ball.moveAndBounce(delta_time, [gc.wallTop, gc.wallBottom, gc.playerLeft, gc.playerRight]);
 	
 	d.draw();
 }
diff --git a/src/client/handleInput.ts b/src/client/handleInput.ts
index 9eef3dad..2e929042 100644
--- a/src/client/handleInput.ts
+++ b/src/client/handleInput.ts
@@ -27,24 +27,23 @@ function handleInput(delta: number)
 
 function playerMove(delta: number, keys: string[])
 {
-	if (keys.indexOf("w") != -1) {
+	if (keys.indexOf("w") != -1 || keys.indexOf("ArrowUp".toLowerCase()) != -1) {
 		socket.send(JSON.stringify(new EventInput(InputEnum.up)));
 	}
-	if (keys.indexOf("s") != -1) {
+	if (keys.indexOf("s") != -1 || keys.indexOf("ArrowDown".toLowerCase()) != -1) {
 		socket.send(JSON.stringify(new EventInput(InputEnum.down)));
 	}
 
 	// prediction
-/* 	const racket = clientInfo.racket;
+	const racket = clientInfo.racket;
 	racket.dir.y = 0;
-	if (keys.indexOf("w") != -1) {
+	if (keys.indexOf("w") != -1 || keys.indexOf("ArrowUp".toLowerCase()) != -1) {
 		racket.dir.y += -1;
 	}
-	if (keys.indexOf("s") != -1) {
+	if (keys.indexOf("s") != -1 || keys.indexOf("ArrowDown".toLowerCase()) != -1) {
 		racket.dir.y += 1;
 	}
-	racket.moveAndCollide(delta, [gc.wallTop, gc.wallBottom]); */
-	
+	racket.moveAndCollide(delta, [gc.wallTop, gc.wallBottom]);
 }
 
 export {handleInput}
diff --git a/src/client/pong.ts b/src/client/pong.ts
index 2c9550d6..b1db0f1b 100644
--- a/src/client/pong.ts
+++ b/src/client/pong.ts
@@ -9,8 +9,7 @@ import {countdown} from "./utils.js";
 import {socket} from "./ws.js"; socket; // no-op
 
 /* Keys
-	Racket 1: W/S
-	Racket 2: Up/Down
+	Racket: W/S OR Up/Down
 	Grid On-Off: G
 */
 
@@ -42,7 +41,5 @@ function resumeGame()
 	pong.interval = window.setInterval(gameLoop, c.gameLoopIntervalMS);
 }
 
-/////////////////////////////////////////////////////////////////////////////
-/////////////////////////////////////////////////////////////////////////////
 
 export {matchmaking, matchmakingComplete, startGame}
diff --git a/src/client/ws.ts b/src/client/ws.ts
index b299d12f..8add7081 100644
--- a/src/client/ws.ts
+++ b/src/client/ws.ts
@@ -5,6 +5,8 @@ import {matchmaking, matchmakingComplete, startGame} from "./pong.js";
 import * as en from "../shared_js/enums.js"
 import { Racket } from "../shared_js/class/Rectangle.js";
 import { sleep } from "./utils.js";
+import * as c from "./constants.js"
+import {soundRoblox} from "./audio.js"
 
 const wsPort = 8042;
 const wsUrl = "ws://" + document.location.hostname + ":" + wsPort + "/pong";
@@ -88,6 +90,12 @@ async function gameUpdate(data: ev.EventGameUpdate)
 
 function scoreUpdate(data: ev.EventScoreUpdate)
 {
+	if (clientInfo.side === en.PlayerSide.left && data.scoreRight > gc.scoreRight.value) {
+		soundRoblox.play();
+	}
+	else if (clientInfo.side === en.PlayerSide.right && data.scoreLeft > gc.scoreLeft.value) {
+		soundRoblox.play();
+	}
 	gc.scoreLeft.value = data.scoreLeft;
 	gc.scoreRight.value = data.scoreRight;
 }
diff --git a/src/server/server.ts b/src/server/server.ts
index 5df88098..aa129cdb 100644
--- a/src/server/server.ts
+++ b/src/server/server.ts
@@ -23,9 +23,12 @@ const server = http.createServer((req, res) => {
 		if (path.extname(filename) === ".html") {
 			res.writeHead(200, {"Content-Type": "text/html"});
 		}
-		if (path.extname(filename) === ".js") {
+		else if (path.extname(filename) === ".js") {
 			res.writeHead(200, {"Content-Type": "application/javascript"});
 		}
+		else if (path.extname(filename) === ".mp3") {
+			res.writeHead(200, {"Content-Type": "audio/mpeg"});
+		}
 		res.write(data);
 		return res.end();
 	});
diff --git a/src/shared_js/class/Rectangle.ts b/src/shared_js/class/Rectangle.ts
index 5049403a..35352b70 100644
--- a/src/shared_js/class/Rectangle.ts
+++ b/src/shared_js/class/Rectangle.ts
@@ -69,6 +69,9 @@ class Ball extends MovingRectangle {
 		super(pos, size, size, baseSpeed);
 	}
 	bounce(collider?: Rectangle) {
+		this._bounceAlgo(collider);
+	}
+	protected _bounceAlgo(collider?: Rectangle) {
 		/* Could be more generic, but testing only Racket is enough,
 		because in Pong collider can only be Racket or Wall. */
 		if (collider instanceof Racket) {
@@ -87,10 +90,13 @@ class Ball extends MovingRectangle {
 			this.move(delta);
 		}
 	}
-	private _bounceWall() { // Should be enough for Wall
+	protected _bounceWall() { // Should be enough for Wall
 		this.dir.y = this.dir.y * -1;
 	}
-	private _bouncePlayer(collider: Racket) { // WIP
+	protected _bouncePlayer(collider: Racket) {
+		this._bouncePlayerAlgo(collider);
+	}
+	protected _bouncePlayerAlgo(collider: Racket) { // WIP
 		// Bounce for Racket need to be more complexe than this
 		this.speed += this.baseSpeed/20;
 		this.dir.x = this.dir.x * -1;
diff --git a/www/sound/pong/0.mp3 b/www/sound/pong/0.mp3
new file mode 100644
index 00000000..14f66a64
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new file mode 100644
index 00000000..dae74cab
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diff --git a/www/sound/pong/10.mp3 b/www/sound/pong/10.mp3
new file mode 100644
index 00000000..f70de101
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new file mode 100644
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