Very polished game, you've obviously put a ton of effort into it. The movement is easy to learn but hard to master, and I found myself throwing myself at the game again and again in attempt to beat my best time. I think this is a very strong contender for the "best speedrunning game", and overall I really like the game.
Obviously my only suggestion is to add more levels hahaha, or if you ever flesh it out, a level editor!