Ah, I'm sorry, I try to finish games before offering feedback but after several minutes of trying I couldn't get the hang of the jump enough to get out of the little starting section and I had to give up. There are some pretty tight jumps in there for how finicky the controls are.
I like the lanky space dude and I think the kind of jetpack-jump thing is cool, I just found it too slippery for some of those one-block platforms.