At the Main Menu, press L1, R1, L1, R1, Up, Down Left, Right, Triangle, then Circle. You shoud hear a sound.
Completion bonus
Complete the game, then play it again in the same mode. You will start with all of Joe's powers (Slow Motion, Mach Speed, and Zoom In).
Play as Alastor
Successfully complete the game in V Rated mode.
Play as Captain Blue
Successfully complete the game in Ultra V Rated mode.
Play as Dante
Successfully complete the game under any difficulty setting.
Play as Sylvia
Successfully complete the game in Adult mode.
Super mode
Successfully complete the game with a "Rainbow V" rank in all Episodes ("V" rank for V points, Defense and Time on all tasks). Select the "New Game" game option, choose the character used to complete the game. That character will have unlimited VFX.
Ultra V Rated mode
Successfully complete the game in V Rated mode.
Unlimited Health
In the pause menu press up, up, down, down, left, right, left, right. Then exit the pause menu. You should end up unlimited hearts.
Unlimited VFX meter
Get all the rainbow V's, in every level, with any character, to have unlimited VFX with that character.
V Rated mode
Successfully complete the game in Adult mode.
Viewtiful Forever FMV sequence
Successfully complete the game.
Viewtiful World FMV sequence
Successfully complete the game in Kids or Adult mode.