Loved the energy = movement mechanic. Art-wise I think the rocket and general aesthetic were great, though I think it could have a bit more polish (during a game jam, in this economy??) on the rocks and background to bridge the gap between "this is all I can do" and "this is how I want it to look", if that makes sense. But I think the rocket and the thrust especially show that you have that skill! Also I don't remember seeing an indicator of which level I was on, so that would be a good addition. Honestly fun game, nice job!