diff --git a/js/Env.js b/js/Env.js
index 80750ea..d9bd461 100644
--- a/js/Env.js
+++ b/js/Env.js
@@ -167,7 +167,7 @@ export class Env {
             const spade = new Spade(
                 Math.random() * 0xffffff,
                 Math.round(Math.random()) ? Size.little : Size.big,
-                startDelta + index + Math.random() * 20
+                startDelta + (index - 1) * 10
             );
 
             this.addToScene(spade, TypeEntity.ennemy);
diff --git a/js/Player.js b/js/Player.js
index d4e14eb..b0ac700 100644
--- a/js/Player.js
+++ b/js/Player.js
@@ -57,17 +57,10 @@ export class Player extends Cube {
      * @param {string} key key pressed
      */
     controlUser = (key) => {
-        const now = Date.now();
-        if (
-            key.code == "Space" &&
-            !this.movementData.state &&
-            now - this.movementData.lastJump > 300
-        ) {
-            this.movementData.changeRotation(
-                this.data.rotation.y - Math.PI / 2
-            );
-            this.movementData.changeJump(this.data.position.y + Math.PI / 2);
-            this.movementData.changeState(now);
+        if (key.code == "Space" && !this.movementData.state) {
+            this.movementData.changeRotation(this.data.rotation.y - Math.PI);
+            this.movementData.changeJump(this.data.position.y + Math.PI);
+            this.movementData.changeState();
         }
     };
 
diff --git a/js/main.js b/js/main.js
index 09f909e..457fb52 100644
--- a/js/main.js
+++ b/js/main.js
@@ -25,7 +25,7 @@ const main = () => {
     addEventListener("keypress", player.controlUser);
 
     // Generate random map
-    env.generateRandomMap(20);
+    env.generateRandomMap(10);
 
     // GUI
     const gui = new dat.gui.GUI({ closeOnTop: true });
diff --git a/js/utils.js b/js/utils.js
index a15d5a4..7d17ccb 100644
--- a/js/utils.js
+++ b/js/utils.js
@@ -26,19 +26,13 @@ export class Rotation {
 
         this.rotationVelocity = 0.03;
         this.jumpVelocity = 0.06;
-
-        this.lastJump = 0;
     }
 
     /**
-     * Change the state of the animation and update the latest jump time
-     * @param {number} time
+     * Change the state of the animation
      */
-    changeState = (time) => {
+    changeState = () => {
         this.state = !this.state;
-        if (time) {
-            this.lastJump = time;
-        }
     };
 
     /**