Very nice idea, though I believe there is an unintended exploit; you can very easily win by separating the first guy from the second via that first obstacle and just bring that first guy all the way down to the winning square. I believe you can fix this by having a second winning square in the game for the second character next to the winning square, and only giving the player the win if both the characters have reached their winning square. Overall I really appreciate games where you control multiple characters with the same input, well done.