To get the 2-player mode, select the dificulty level you want at the beginning of the game. Then click on 3 players. Pick your guy, and then pick one human or two humans, it depends on if you have a friend playing with you or not. If not, then select one human player and then one computer player. Start your game. When it gets to the player that is not playing, make an accusation and get the accusation wrong. That player will get GAME OVER and you and the computer or your friend will be the only players left.