So the game has some good music and the art is very nice but I feel like a few things turn from fun into frustrating, I want to start with movement, because there is no real way of controlling how the player stops or slows down it makes it really easy to keep hitting things, without a checkpoint it forces a lot of backtracking meaning that we have re experience those aspects and not the new ones we haven't seen, then the damage you take from a slight tap also seems a bit unfair at times rather than taking the impact velocity and somehow translating it to damage. The candy bar rotation also seems to be rotating the wrong way? I'm not sure how to say this but it seems like it should go clockwise due to the positioning of the propeller.
Some things that could be considered solutions.
When the user let's go of movement keys accelerate the velocity decay so that the user stops faster.
Make damage more proportional to the speed of impact.
Introduce a way to keep progress.
Other than that I noticed there was a pause button but I could only press it with my mouse and on the menu, since it was a 2 button limitation pressing q&d to pause/unpause might have been a solution and on the menu using these to start & open help.
Overall a good game that needs a bit of polish for a much nicer experience.