nice game, very simple and fun.
i found few stuff that bugged me..
on 2nd round, you supposed to jump down in order to teleport back up.
i didnt see it right away. i thought i was going to do. so i searched for some kind of clue. in the end i made this jump. maybe better to make some kind of pointing down arrow?
lack of background on 2nd round:

on the 3rd stage, there is platforms you can jump UP. but cant go down?

other than that,
great visuals. the style is awesome. nice art. <3 <3 <3