Lots of fun to blast around everywhere, bouncing off of every surface. I ended up completing all the levels except the last two, which I tried for a bit before giving up on.
My biggest critique would be your implementation of the Light/Dark theme. It's present in the form of turning the lights off so the enemies don't see you, but frankly it felt disconnected from your regular gameplay. What I mean by that is, if the enemies *always* behaved how they did when the lights were off, then the game would just feel more succinct.
Also, the fact that your main mechanic for light/dark was declared optional (in fact incentivized not to take part in it, with the achievement!) just felt weird.
Still though, I rated this one high! It was very well made and achieved at what it set out to do.
Well done!