I like the idea, reminded me of happy wheels a bit but if it were more focused on speed. I found it hard to know how to get past some parts, like you obviously need to not go too fast or too slow during some parts but there's no real way to know besides trial and error which isn't a bad thing but after trying and failing a lot it get pretty tedious having to spin my mouse around the pedals like that. Other than that I think it's a good concept, I think you can expand on it for sure!