I understand that this is a mini jam so I'll keep it brief. Cool game, great limited aesthetic. I liked the part at the end of the second level where there's several alternating platforms in a row and you had to pay close attention to your color so as to not fall through. Overall the concept is awesome.
I didn't play much further into the third level though. The character falls way too fast for what I felt to be reliable platforming. I think a bit less weight or loftier movement would work much better for the precision required. As it was, after a boost I would rocket down to the bottom of the stage and I didn't feel like I could consistently make the long jumps. Again, I say this understanding the limited nature of the project full well. Just something to perhaps keep in mind if you intend to take on platforming again in the future.
Much love from the tribe.