"If you actually manage to complete the game please let me know"
and I took that personally XD
Zipping around using the booster rocket was really nice, especially using it to dodge incoming fire blasts. At first though I didn't realise that I actually had that upgrade, and instead just ran and rocket jumped over those little baby spikes.
I did get stuck on the vertical jump for awhile, one part being because I didn't actually realise that I had gotten the ability to fly. I think the player needs to be eased more into seeing what their power ups can do.
On the vertical jump, since moving around is a bit difficult in the air, I found that even if I started right where the up arrow was, I would constantly move too far to the left or right and miss the gap (its possible that I just suck though)
I'm unsure how this next problem would be solved, but since your rocket knocks you back, when I tried to wall climb, I'd often not angle it right, and push myself too far away from the wall, and need to start again, which wasn't too bad, except for the big vertical jump, where I would make it, but then push myself off the wall and fall back down.
Overall I liked the game and would have liked to see a larger map to really use the manoeuvrability of the rocket. It was fun to go flying, just not enough opportunities to do.