Super cute!

The concept is cool but I wish it was explored through puzzles and not tricky platforming since there’s no added difficulty if not just having to do things twice. If you want to explore this further I’d suggest putting each character in their own course (say, one for each half of the screen) this way you can make levels that feels easy to traverse initially but the link becomes “the catch” when you realize the “normal way” would break it.

Cool concept! Slow going though, and the mechanics weren't too satisfying. But there's potential there.