Viewtiful Joe 2 Cheats for GameCube

Complete the following tasks to unlock the corresponding effect
Unlock Reel Select:
Beat the game on Adult
Unlock V-Rated Mode:
Beat the game in Adult mode
Unlock Ultra V-Rated Mode:
Beat the game in V-Rated mode

Unlocking Chambers
Complete the following tasks to unloc the corresponding chambers
Unlock Chamber 1:
Complete Reel 1, Act 4.
Unlock Chamber 2:
With over four lives remaining complete the slippery floor scene in Reel 5 Act 1.
Unlock Chamber 3:
Get killed by a Rocker.
Unlock Chamber 4:
Complete any scene with one life remaining.

Unlock Chamber 5:
Clear Reel 2, Act 3.
Unlock Chamber 6:
Complete Chamber 1.

Complete the following tasks to unlock the corresponding effect
Unlock Reel Select:
Beat the game on Adult
Unlock V-Rated Mode:
Beat the game in Adult mode

Unlock Ultra V-Rated Mode:
Beat the game in V-Rated mode

To get Super Unlimited VFX, finish each level with Rainbow V. Select character and press Z.