This is my favorite 2D side-scroller of the game jam.
I have seen a bunch of the 2D side-scroller "get big then get small" gimmicks, but I haven't seen any other game capture the "fractal" angle of it all. It's such a cool feeling going by and seeing an entire little level that you pass by in 0.1 seconds while you're big, just to be fighting through it a bit later when you're small.
I personally think the level design was pretty great, and the visuals were generally quite nice as well.
Overall great entry, well done.