I have made several crashes my game, and now I have intenado create another, and not working. And I've done the same way as the above ... I have this in the CREATE function: barras = game.add.group(); barraLateral = barras.create(0, 10, 'barra'); barraLateral2 = barras.create(0, 460, 'barra'); game.physics.arcade.enable(barras); barras.enableBody = true; barraLateral.body.immovable = true; barraLateral2.body.immovable = true; game.physics.arcade.enable(playerBet); playerBet.body.enable = true; playerBet.anchor.setTo(0.5, 0.5); playerBet.body.collideWorldBounds = true; playerBet.body.bounce.setTo(0, 0); playerBet.body.immovable = true;and the update function game.physics.arcade.collide(barras, playerBet);The collision does not work ...