3-on-1 Vacant Lot Tag!
From the Super Mario Wiki
3-on-1 Tag Vacant Lot Tag! is a 4-player minigame in Mario & Sonic at the London 2012 Olympic Games (Wii).
Players play tag on a 3D Vacant Lot map. The player evading is randomized at the beginning. Either team can use items to their advantage. The game ends when either the time is up or the evader is tagged.
Wii Remote held sideways
Wii Remote and Nunchuk
Objective: Tag everyone or keep at least one free!