Rugal Bernstein is an SNK character who made his debut in The King of Fighters '94, where he took the role of final boss, facing by himself whole teams of 3 fighters. Since then he's been in several King of Fighters games as a final boss as well as some crossovers. However, he was only allowed to be used in KoF 98 due to his other KoF appearances being overpowered as Omega/God Rugal.