『Prison Out』 is a game where the objective is to escape from a prison using 3D action and a physics engine. To escape from the prison, you must sneak past the guards, get the key, and escape from the prison.

When he asks the devil for help in escaping from prison, he is turned into a teddy bear, but it is up to him whether he goes to defeat the devil to return him to normal, or whether he just runs away.

Even if you manage to escape from the cell, guards will be wandering around, so you'll need to hide and find the key.

You can also progress easily by using the powers you gain from demons to escape or defeat the guards.