I like it - as others have said, polishing the controls as the player gets up to speed is defo an idea for future work on this game, but the sprites are cute, the premise is clear and other than slight delay on the jump button the controls are pretty solid :) The only other point I would add is that the background parallax sprites are a little janky as you run which might be a case for smoothing the camera movement slightly? I'm not sure haha
Either way you've made a cool game