I really like the idea but the mechanic is a bit too unpredictable to be satisfying. I got stuck, or more rage quitted, on the second part of the level with the two black holes. :'(
Your menu is the best!!
I think I should've made a better tutorial so definitely ding me for that, but let me try to explain it to you and give it one more go:
You wrap around the black hole at 90 degrees. So if you drop down from the top left, you will shoot out at the bottom right. You shouldnt try to enter the black hole from the center if you want it to slingshot you predictably.