Yeah, I tended to opt out of the Nunchuck tests when I first started but I love them now!
Damage, if you're really going to party mode then maybe have a look at some of the reviews of Warioware Smooth Moves, I think up to 32 players can play (if I remember right) and it basically invloves loads of quick fire tasks that last a few seconds before switching to the next player. There's about 4 multiplayer modes that can be unlocked. But it is weird, so it might not be your thing