Great game!! I absolutely love the animations and the gravity gun mechanics, this is one of the best games I played so far on this jam, I have a couple of pieces of feedback though:
1. Jumping was kind of bugged in some areas, I had to restart the game to fix it one time
2. Flying is possible and easy, IDK if this was intended, but you can just cheese most levels by flying or even just pushing yourself with the box fast enough
3. You can take boxes to next levels, so if there was a level where restricted amount of boxes was important for the puzzle, this could ruin it
4. The game was a little on the short side, but no worries, this is a 4 day game jam.
This game has potential so if you decide to work more on it, please take this feedback into account! And good job making such a nice game.