You have only the shadow of yourself to rely on...luckily, your self has a lot of shadows.
Play The Company of Myself Games! The Company of Myself Games is a very fun game!
How To Play:
Left/Right = Walk
Up = Jump
Space = Enter Doorway/Duplicate
P = Pause
R = Restart Level
Use duplicates of yourself (which are solid enough to stand on) to get through each level of harrowing leaps to reach the green exit.