First person mode: Press Start to pause game play. Then hold L and press Y, B, Y, B.

Turbo mode: Press Start to pause game play. Then hold L and press Y, B, X(2).

Welsh mode: Press Start to pause game play. Then hold L and press Y(4).

Enable "Real Controls": Press Start to pause game play. Then hold L and press Y(3), B.

Squeaky voices: Press Start to pause game play. Then hold L and press Y, X, Y(2).