Disney's The Haunted Mansion Cheats for GameCube

Zeke is a Skeleton:
Hold A + B + X + Y at the opening sequence, before the legal screen. Release the buttons at the title screen.
Zeke is invisible:
Hold A + B + L + R at the opeing sequence, before the legal screen. Release the buttons at the title screen.
Invincibility:
Hold Right on the control pad, then press B, X(3), B, X, Y, A durning gameplay
Weapon upgrade:
Hold Right on the control pad, then press B(2), Y(2), X(3), A during gameplay
Level select:
Hold Right on the control pad, then press X(2), B, Y(2), B, X, A durning gameplay

These codes can be found after completing the game on Nightmare mode, just for the record so I am no accused of copying others