Really great concept and awesome execution! I struggled with the difficulty; it feels like it ramped up really fast. I am not very experienced with Sokobon-style games, but I have played lots of other puzzle games, and I prefer when they build a bit more slowly and are able to gradually reveal new concepts. Maybe that is out of scope for a jam game, but it seems some of those levels had only one solution, and it made them feel more like final "test your knowledge" levels rather than easing you in. I would say level 3 and on were pretty difficult. That being said, the visual style, music, and controls were all superb, and I really want to play more and see what else you make!