Game is focused on only one goal escape the current world. You take the role of a player that is able to move around only if he is touching one of the walls. He can make big and small steps depending on what you decide.

Taping the screen will cause the player to move in the opposite direction of where you tapped. Depending on how far away from the player you tapped the screen he will decide his jumping force. Further away means more force and vice versa.

Its simple, tap and see what happens.

P.S. I would not step on anything red if I were you, and also take care of the holes, they run deep.