Forward or go Back to different battle scenes:
Forward 1 scene - R + Start
Forward 2 scenes - R + A + Start
Forward 3 scenes - R + B + Start
Forward 4 scenes - R + C + Start
Backwards 1 scene - L + R + Start
Backwards 2 scenes - L + R + A + Start
Backwards 3 scenes - L + R + B + Start
Backwards 4 scenes - L + R + C + Start
You can play all 45 characters in Vs battle.
You can max your characters power out.
You can choose which stage to begin on in story mode.
You can watch the different endings.
Debug Mode(Japanese)
In debug mode you can access a ton of options, including stage select,
maximum life, level skip, and others. To enable this mode, enter Option
mode and press A + Y + C. Enter the Setup screen and you'll see a new Debug
option. See the english version of this code for a description of your
options.
Free Experience
For free experience, enable the 99 Continues code, then reset the game
while playing. The Experience menu will appear. The downside? Each use
of this trick costs one continue.
Hidden Arena
While playing in Story Mode, you can get to the arena in stages 3,
5 and 12. To do so, kill all the enemies on the level (including the hidden
plants and disfunctional robot on stage 3). When you've done this, jump
to the back of the screen (the third row) and walk past the sign. You'll
arrive in the arena where you can fight as many battles as you like to
build up your stafs.