The feeling of jumping between these circles of gravity was really cool!
I liked that there were a whole bunch of hidden and weird mechanics depending on what planet you landed on.
The super fast moving objects that instakill you could be a bit annoying.
The tutorial message tells me I can use the arrows to move but only a and d worked for me. Also, I'd have liked it a lot more if I could jump with w in addition to the spacebar. That always feels me intuitive to me.
Cool music. Did you make it yourself?