There seems to be something interesting hidden in here. The idea of being forced to switch characters isn't interesting, particularly given that you must choose only one to win. However, this doesn't present any conflict. There is no puzzle to figure out how to win with a certain character, nor is there anything that can actually harm "you" (given that "you" can be anything). I picked up on what was happening pretty quickly, as far as the mechanics go. Perhaps there is potential for a compelling puzzle game if the concept is developed more. Keep at it!