Frogger 2: Swampy's Revenge Codes -

Level select:
Pause game play, then hold X and press Up, Down, Left, Right(3), Down, Left.

Level skip:
Pause game play, then hold X and press Right, Left, Up(3), Right, Left(2).

Unlimited lives:
Pause game play, then hold X and press Down(2), Up, Down, Right, Down, Up(2).

All, characters unlocked:
Pause game play, then hold X and press Left, Right, Left(3), Up, Left(2).

Extras and bonus levels, unlocked:
Pause game play, then hold X and press Right, Up(2), Down, Right, Down, Right.

Temporary invincibility:
Pause game play, then hold X and press Left(2), Up, Left, Down, Right(3).

Turn coins into Mad Garibs:
Pause game play, then hold X and press Right, Left, Right, Left, Up(2), Left, Right.