Simple and beautiful, probably my fave game I have played so far. The simple mechanic has so many layers with the mechanics, the different gravity levels, using the momentum of the central black hole to slingshot yourself. Very good.
My only pet peeve which isn't even a serious complaint is that the random rotation of your character, does make it feel like there is a fair bit of RnG on each run. And you can get quite unlucky with your positioning, which doesn't feel like the players fault.
Imo giving some control or making it more predictable where the character is going to point after each launch would make the game feel more fair and Foddian, as every mistake would be the player fault for not reading the world or using the mechanics correctly.
However, I might just be dumb and not realise how it works, if so ignore me.
But again really well done :)