Capcom vs. SNK 2 EO Cheats

Score 1000 point or more in Ratio Tournament

After unlocking the Extra Options, go to "Option Mode" at the main menu. Go to "Extra Options", select "Player One Life Gauge Type" and change it to "No Damage". Then, go to "Groove Gauge Type" and change it to "Infinite". After this, start survival mode and defeat all 46 characters without taking damage and your Groove Bar will always be full.

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.

The middle Boss appears when the following conditions are all fulfilled:

No time over has occurred.
The CPU has not made over six "first attacks".
The CPU has not made three or more Special KOs.
Victory quotes:
Hold Start + FP after winning a stage to make your character say an opponent specific quote. Hold Start + FK to make the character talk with a team member.

Beat both Ultimate Rugal and Shin Akuma to unlock Boss Mode

Access boss mode by holding X + Y and pressing Start on Arcade Mode. Make sure you do that for both picking Arcade Mode and the type of match (Ratio, 3-on-3, or One-on-one).