@pkenney thanks for the details on how you were having trouble. The most prominent feedback I've gotten is that the game is "too hard," but I want to know how to fix it. It sounds like your specific issue was falling in a big, open area. If I revisit this game, I plan on making the first level much more of a fixed path to follow.
When testing this game, I personally found that the fun part, for me, was trying to find a viable path up, and then executing on it by using several of harry's moves in combination, such as hanging from the ceiling and then jumping to a climbable background. However, I think this is too much to ask of a new player on level 1 - the first level should just focus on exploring harry's moveset.
@risingoat Yes! even though there is a "You won!" screen, the game actually continues to generate playable levels forever. Practically, I don't think I've made it past level 6 - your rate of hunger loss increases by 30% every time you advance a level, and at a certain point it is extremely hard to eat enough mushrooms to compensate.
@pablodap thanks for the awesome visual. I never got around to playing with this, but I imagined Harry growing more extremities as he climbs and gains powers (maybe horns to break ceilings, a tongue to grab things far away), as well as getting more 'vascular' as he gets faster and faster. Cute, but gross is what i want.