Not so little platformer with an almost 800MB download x).
The controls could've indeed used some work (I had a lot of trouble with those platforms) and there were some oddities here and there (I beat the last level by falling off of it?). I also couldn't figure out what to do with the marks shot by the jukebox, and just completed level 2 by walking to the end with 1 of those blue orbs. I liked how the levels were different though, both visually and mechanically (even if level 2 was a bit... busy to my liking).
At first I was super confused since clicking a number + mouse didn't seem to do anything. Then I realized that it was the same bug I had with a previous game, where if I started the game in fullscreen it would not update the mouse position at all. Windowed mode worked fine under Linux though.