Everything about that cage is wrong, no wonder it wants to escape, is bored or stressed. Does it has to sleep in that thing??? My god poor thing. This is pure agony. This is no mouse or rat, its a bunny! This cage looks like it is made for hamsters. I know you japanese people are forced to live in tiny spaces but dont get a pet if you cant give him the space it needs! This is a bunny, no toy or anime sidekikck. My god. This is so selfish.