Game Franchise: Mario Party

Everyone who's ever played Mario Party knows that Shy Guys have a thing for cheating to win otherwise fair competitions. A mini-game where only Shy Guys must participate in a synchronous samba through Mario-themed landscapes, all players working together to keep in rhythm, would make a cool diversion from point-and-click shooting and navigating mazes. And it'd be true to source material, too -- there's no way Shy Guys should have won all of those competitions before.