So you can actually complete all levels. The movement needs some time to get used to but its fine. Some medals for the achievements would be nice.
I guess how many stars you get is based on how fast you finish. If so an ingame timer would be nice and also the times you need for 3stars.
Also a keyboard shortcut for restart would help.

It's okay I guess, but kind of janky and unoriginal

Game froze on me. I tried to restart and the music was gone and I can't move my bike.