Capcom vs SNK 2 EO Cheats for GameCube

One on three tag team mode:
Highlight any fighter at the character selection screen and press a button. Allow time to run out and the game will start in a one on three tag team mode match. (Do not select one on one battle mode)
Easy points:
Set the levels on the easiest difficulty level and increase the damage. Fight the first person. He or she should be very easy. Do good damage and make sure you end the first round with the Super Combo. Play the second round and beat them up, then press Start on controller two to enter a versus fight.
The points you have gathered just before the second player joins will be the same when you return to fight the first person again. You will also have to defeat them twice. You can keep repeating this process until you have gathered the desired amount of points.

Play as Ultimate Rugal:beat arcade mode with SNK fighter with 1500 points or more
Play as Shin Akuma:beat arcade mode with Capcom fighter with over 1500 points
Unlock Boss mode:win against Ultimate Rugal and Shin Akuma, then press X, Y and START when selecting arcade mode

Boss Challenge mode
Boss Challenge mode becomes available when:
A) Both hidden Bosses (Shin Akuma and Ultimate Rugal) have been defeated and unlocked.
B) Highlight Arcade mode and hold X + Y and press Start
Extra options:
Unlock Extra Option by completing Boss Challenge mode with no continues.

Get your GP meter at 700+ and beat the final match. Thunder should flash behind you and you'll see akuma and rugal on the house behind you.
If one of them talks first, you'll face that person in his ultimate form.
Beat that person and you have unlocked him for all modes. Their defense is weak, but their strength is alright.

Extra Options - Finish (Boss Challenge Mode) with NO continues. Now (Extra Option) is available.
Infinite Custom Groove - finish off all characters in one go in survival mode. Now (Custom Groove) option settings are now infinite.