Level 15. Drag broken chime to hook. Click 2nd chime to clear pipe, click red button. Then click 1, 3, door will open half way. Click red again, then click 3, 1, 4, 2.
When he goes for the laser attack, just get on the edge of the screen and start hitting him. you will move him a bit and get behind the laser, free time to attack him really.
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