This was a really good game. The minimal design is nice, the light-platforms are a great mechanic, and the fast respawning is a fantastic way to reduce the frustration of failure.
My only complaint is that the puzzle in the final level where you have to throw the bulb between platforms is so much more difficult than anything else, and the slow process to reset the bulb (and some buggy platform respawning) makes the failure that much more infuriating! I'd be interested to know if anyone's actually completed it and I just need to get better, or if the slightly inconsistent throwing controls actually make it impossible!