All cheats have to be entered at the extras screen. They will be confirmed by
the sound of a scream.

Unlimited health:
Press Y, WHITE, BLACK, BLACK, WHITE, Y, BLACK, BLACK, BLACK, Y, Y, Y.
Note: Falls are still harmful.

Multi-player arenas:
Press Y, Y, WHITE, BLACK, BLACK, Y, Y, Y, Y, Y, WHITE, BLACK. Four multi-player
arenas will be unlocked.

Slayer power:
Press Y, Y, Y, BLACK, BLACK, BLACK, Y, WHITE, BLACK, BLACK, WHITE, Y.

Play as Dark Buffy in arena mode:
Press BLACK, WHITE, Y, Y, BLACK, BLACK, WHITE, BLACK, BLACK, WHITE, BLACK,
BLACK, WHITE, BLACK, BLACK, BLACK, WHITE, WHITE.