Unlock All Boxers - Use MIKE TYSON as your fighter name.

Unlock Invincibility - Use MUHAMMAD ALI as your fighter name.

Unlock All Arenas - Use LENNOX LEWIS as your fighter name.

Dumb Mode - Use JESSICA MELTON as your fighter name.

Fat Mode - Use RICH OBERDICK as your fighter name.

Big Head Mode - Use DAVID TUA as your fighter name.