I like the art, especially the character, the levels were relatively simple I think, I struggled most with 4th and (surprisingly) 1st (I still am not sure I got the "intended solution" for level 1). Also there are some bugs (in particular, you can use the platform that's just on your cursor as an actual walkable platform, and you can move it while the character is already running), but well, that's how jam-time goes.