diff --git a/sources/js/index.js b/sources/js/index.js
index 350c397..3b19ba7 100644
--- a/sources/js/index.js
+++ b/sources/js/index.js
@@ -17,6 +17,7 @@ const dieSound = new Audio("sources/sound/onDie.mp3");
 const gameOverSound = new Audio("sources/sound/onGameOver.mp3");
 const game = new Game(canvas);
 const scores = [];
+let inGame = false;
 
 let gameOverModal;
 
@@ -43,6 +44,7 @@ req.onload = () => {
 req.send();
 
 game.onStart = () => {
+    inGame = true;
     updateLives(game.lives);
     updateScore(game.score);
     menu.classList.add("invisible");
@@ -52,6 +54,7 @@ game.onStart = () => {
 };
 
 game.onStop = () => {
+    inGame = false;
     menu.classList.remove("invisible");
     gameZone.classList.add("invisible");
 };
@@ -133,11 +136,16 @@ function reloadScoreBoard() {
 }
 
 
-document.addEventListener('DOMContentLoaded', function() {
+document.addEventListener('DOMContentLoaded', () => {
     M.AutoInit();
     gameOverModal = M.Modal.getInstance(gameOver);
 });
 
+document.addEventListener("keydown", ev => {
+    if (inGame && ev.key === "Escape")
+        alert("Game in pause...");
+});
+
 audio.addEventListener("canplaythrough", () => {
     audio.play();
 });