Favorite local Multiplayer game

[AkimboCurly]

Wii Sports (and Sports Resort)
Mario Kart DS (I forget how many DS's we had linked up together at school, maybe six or eight of us?)
Call of Duty 4 splitscreen (Grenade launchers banned)
Fuzion Frenzy
Halo Reach Forge mode ("If you can't beat it, delete it")