Settings Platform size Tube size Prefill count Unique tiles Restart   Play sound effects. Add new tiles. Play 'new tile'-sound. How to play Pull a tile from the conveyor belt and push it against another tile of the same type to make them disappear. Try to clear all the tiles. Move : Use WASD-keys or arrow- keys or gamepad / joystick. Push & pull tiles : 'Ctrl' of 'Space'. Pause game : 'Esc'.