One thing that is cool with this game is that your healthbar is the character. In the first level I thought you had done something wrong because the cube shrinked but then I noticed that it only shrinked when I jumped or took damage. Maybe you should shrink horizontally and vertically. Then you would have a bit advantage when you don't have a lot of health. The boss level or whatever was nice. When I first played it I thought it was too hard because that red thing from the top came down pretty fast but after some retries I won the level. I really like that you made a lot of levels. The most of the games I have played in this gamejam that have levels only have like 2-3.