Morito considered the situation very carefully, despite more or less pretending to hide behind others at all the strange displays and powers he'd witnessed shortly before. The good news seemed to be that he was guaranteed a way home no matter what happened here, and really that was his most important goal at the moment. After all, he was a bodyguard who would protect his charge no matter what! Or at least that was what he had promised to be before all of this started. A little thing like being trapped in a strange dimension to play games for an ancient, dying deity wouldn't stop him from keeping that promise in the slightest, as anyone who got in the way of that would find out, the hard way.

As for a wish well...Morito really wasn't sure. He hated to admit it, but he was more the type of person who wanted to make the world better with his own hands, and the Viewer definitely did mention that wishing was dangerous business, as any magic-based exchange of power seemed to be in Morito's experience. It would probably be better and safer just to fight long enough to get home and let someone else have the wish. Preferably not the evil spacelord or the Lich, but somebody else not-totally-evil or selfish.

Thus, when Morito wailed "I'll play..b-but...I-I just wanna go home!~" while in (fake) fear for his life, he actually meant it, though with entirely different emotions.