Uweya is a miniature version of Earth, like a globe. When you center a coin on it and say the command you enter Uweya on that point. Living matter is invisible on Uweya, but everything acts as if the living matter were there. When you go to Uweya when on Uweya, you'll find the power source, throwing a coin at it destroys it, as Nate did at the end of Arcade Catastrophe.