2-on-2 Tag, Pipe Style!
From the Super Mario Wiki, the Mario encyclopedia
2-on-2 Tag, Pipe-Style! is a 4-player minigame in Mario & Sonic at the London 2012 Olympic Games (Wii).
There is a team of two taggers and a team of two evaders. The team the player is on is randomized at the beginning. Players play tag on the vacant lot. There are gates that block the path and colored Warp Pipes that take the player to the corresponding color pipe somewhere else on the map. If an evader is tagged, they are removed from the map and watch the other player. Either team can use items to their advantage. The game ends when either time is up or both evaders are tagged.
Wii Remote held sideways
Wii Remote and Nunchuk
Objective: Tag everyone or keep at least one free!