Thanks for your feedback! I'll be right on it! but before, let me clarify (and answer) some of the points:
1. It's really just another gameplay portion, it doesn't really make sense but i thought i should emphasize the black holes more so i made them super dangerous by not only them eating bullets but also punishing you for doing it too much.
2. Ok! I'll dial it down a bit
3. In the re-release i hope i get some music in as well for the gameplay, but in the jam i was kinda lazy about sounds
4. I'll investigate how to make buttons clickable with the keyboard, thanks!
5. This problem is fixed in a new version of the game I made a bit after the jam started, so i cant upload it :(
Thanks again!