NeoGeo Battle Coliseum/Bosses

Mizuchi

 * First appearance: NeoGeo Battle Coliseum, clone of Orochi (who first appeared in The King of Fighters '97)

King Leo
King Leo can not be played. If King Leo is unlocked, you will be given access to King Lion.
 * First appearance: Savage Reign

NEO-DIO

 * First appearance: World Heroes 2

Goodman

 * First appearance: NeoGeo Battle Coliseum