Unlockable: OOO (Purple Eyes)
To unlock OOO (Purple Eyes) you need to get 100 percent on Heroes Mode.
Then, start Arcade Mode as any character. While playing, if he appears during a match, beat him to unlock him (after completing Arcade Mode). Then, when highlighting OOO, hold start and press "O" to choose him.
We have more cheats and tips for this game here, Kamen Rider Climax Heroes Fourze cheats
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