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  1. So i'm just trying to make a simple collision between falling objects and a players sprite. Its nothing complicated. I'm trying to use the game.physics.arcade.overlap() function. Here is my code: The Player class -> export class Player{ game: Phaser.Game; player: Phaser.Sprite; constructor(game:Phaser.Game){ this.game = game; this.player = this.game.add.sprite(400, 520, "Player"); this.game.physics.arcade.enable(this.player); } create(){ } update(){ if (this.game.input.keyboard.isDown(Phaser.Keyboard.LEFT)) { if(this.player.x >= -10){ this.player.x -= 7; } } else if (this.game.input.keyboard.isDown(Phaser.Keyboard.RIGHT)) { if(this.player.x <= 830){ this.player.x += 7; } } } } The falling objects class -> export class Rock { game:Phaser.Game; rocks: Phaser.Group; constructor(game:Phaser.Game){ this.game = game; } create(){ this.rocks = this.game.add.physicsGroup(Phaser.Physics.ARCADE); this.game.physics.arcade.enable(this.rocks); var x = 10; for(var i = 0; i < 9; i++){ var rock = this.rocks.create(x, this.game.rnd.between(-30,-5), "Rock"); rock.body.velocity.y = this.game.rnd.between(240,300); x += 105; } } update(player){ this.rocks.forEach(this.checkPos, this); } checkPos(rock) { if (rock.y > 800) { rock.y = -100; } } } The Main Game File where i'm using the overlap function -> create(){ this.difficulties = []; this.difficulties.push(new Difficulty(0, 5)); this.difficulties.push(new Difficulty(1, 7)); this.difficulties.push(new Difficulty(2, 9)); this.currentDifficulty = this.difficulties[0]; this.shouldChangeDifficulty = true; this.levelOne = new LevelOne(this.game); this.levelOne.create(this.currentDifficulty); this.currentLevel = this.levelOne; this.player = new Player(this.game); this.player.create(); this.rocks = new Rock(this.game); this.rocks.create(); } update(){ this.player.update(); this.rocks.update(this.player); this.game.physics.arcade.overlap(this.player, this.rocks, this.collisionHandler, null, this); } collisionHandler (player, rock) { console.log("Does it work ?!"); }