Very nicely done. The music, title screen, animations, and backgrounds come together to feel very polished for a 48-hour game. I found it very difficult to build the muscle memory of colors mapping to numbers, so I could only really make progress by memorizing the button presses. That's not my preferred way to play platformers, but definitely works for some players. Maybe if the numbers themselves were displayed on the hazards it would work better for me.
Anyway, great job overall!