The idea you came up with for this could be good, but I don't think you used it to its full potential. The levels seemed like they were more focused on the platforming rather than the gimmick of changing between two versions of the level. If it had been more focused on the potential puzzles surrounding that and some of the techniques you could perform with it, I think it would've been better. But instead it focused on the platforming, and it's hard to make good platformer movement in 48 hours.