I'm -really- curious about how they'll handle the "music" in the Gamer stage. The original, in Game & Wario, is mostly silent, save for the sounds of night (crickets chirping, etc). Then you have the violins building up suspense when something is about to happen... or not happen, as it could just be the cat popping open the door, or the man with the toupee peeking through your window (which mind you, is equally scary but not nearly as scary as mom here).
So the question is, will they have music in the Gamer stage, or will they handle it like Game & Wario did? Personally, I hope they handle it like the original. It's so much more suspenseful that way!