The music in this game is really catchy! I do agree with some of the other commenters: the controls feel slippery, and I think this game could definitely use a "late-jump" mechanic. A lot of platformers have some forgiveness built in where you can still jump a little after you leave the platform. That small assist would probably go a long way in a game like this (where you accelerate to such high speeds.
I also think you could have leaned into the theme a bit more (i.e a one-button runner). While making a one-button auto runner wouldn't have been the most original idea, I think it could have helped you focus your design a little more by taking the directional aspect out of the game/controls. That said, I think this game is a really solid start to game jamming! Nice work!