SNK vs. Capcom: SVC Chaos Cheats - Xbox

Mars Alien
Hold [Start] and press [Up], [Down], [Right]x3, [Up], [Down], [Left]x2, [Down], then any button at the title screen.

Goenitz
Hold [Start] and press [Down]x3, [Right], [Down], [Left]x3 at the title screen.

Geese
Hold [Start] and press [Left]x3, [Down], [Left], [Up], [Right], [Up] at the title screen.

Evil Iori
Hold [Start] and press [Up]x3, [Down], [Left], [Right], [Down], [Left] at the title screen.

Dan
Hold [Start] and press [Down], [Left]x7, then any button at the title screen.

Demitri
Hold [Start] and press [Right]x3, [Left], [Up], [Right], [Down], [Up], then any button at the title screen.

Violent Ken
Hold [Start] and press [Up]x2, [Down], [Left]x2, [Right], [Left], [Up], then any button at the title screen.

Zero
Hold [Start] and press [Up], [Right]x2, [Left]x2, [Down], [Up]x3, then any button at the title screen.

Shin Gouki/Super Akuma
Highlight Balrog at the character selection screen then hold [R].

Shin Mr.Karate
Highlight Kasumi at the character selection screen then hold [R].

Young Athena
Enter survival mode. Defeat the opponents until you face Athena. Defeat her to unlock her as a selectable character in all modes. To choose Athena, highlight Genjuro, then hold [R] and press [X], [Y], [A] or [B]. Note: Athena is one of the best fighters in the game.

Red Demon
Enter survival mode. Defeat the opponents until you face the Red Demon. Defeat him to unlock him as a selectable character in all modes. To choose the Red Demon, highlight Tabasa, then hold [R] and press [X], [Y], [A] or [B]. Note: The Red Demon is one of the best fighters in the game.

Art Gallery
Successfully complete the game in survival mode by defeating 36 fighters to unlock the Art Gallery option.