Coming from Game Informer
1. There will be single player only games. Donkey Kong and Balloon Fight amongst them. These games will be the ones supporting the off-tv play. Will have challenging features.
2. Music is really good so far. Even the non-remixed music you hear in the theme park and menus.
3. Looks like there are random "games" or activities? That you can play outside of the big theme parks.