Very nice idea and very well executed :) especially how the game gently introduces the mechanic (my first 2 levels or so I still didn't know what was going on, but still able to solve the levels - then I had to learn, and then everything clicked).
Very neat idea, and both the controls and graphics are pretty clear! I enjoyed flying around, although felt at times that the fuel was draining very fast (for example, I would have liked to be able to aim left/right without needing to use fuel, so that I can line up "jumps" to other stars).
My only complaint: whenever I run out of fuel and I want to start again, I'd like to jump right back into it to try again!
I just fixed the issue with the levels - I had uploaded a wrong build that started at the last one.
I also had the same problems as you while testing the game! I'm very used to jump with the "up" key so it took some adjustment. I think in a proper version of this game, there should be a longer tutorial section so that the player can get used to it.
