This is a really fun game. The movement mechanic took a little time to get used to but it turned out pretty enjoyable.
The levels were fairly hard for me but not that much - I think it's the perfect balance between too easy and too frustrating, right on point. Except for level 13 or whatever (the one with buttons floating mid-air) - I didn't see where to continue and quit the game because I thought it was the last one unfortunately. Either increasing camera view or adding a couple arrows here and there could help.
I think this game could become a full Steam release, awesome!