Pokemon Stadium 1 or 2 (easy because all mons are available to play with, so you only need 1 console, 1 game, and two controllers): Play 6 v 6, every time you are hit by a critical or are killed in one hit, take a shot. Every time you switch pokemon or lose a pokemon, drink. If you are paralyzed, infatuated, frozen, or confused, and your attack fails (or you attack yourself), drink.
