This game is an absolute blast! As far as my tastes are concerned, the controls respond exactly like I want them to, and I feel like when I fail, it's my fault. It would be nice to have a little flag on the progression bar telling you how far you made it on a previous run, but other than that the only other issues I saw were (basing this on my own experience) probably related to time constraints, and you're probably aware of them already. The penguin is ADORABLE.
Really nice work.