King Of Fighters '98

Fight as Evil Blood Riot Team:
Hold Start and select the normal version of the team.
Information in this section was contributed by ng wei sheng kenny.

Fight as Omega Rugal:
Hold Start and select Rugal at the character selection screen.
Information in this section was contributed by ng wei sheng kenny.

Fight as alternate characters:
Hold Start and select Terry, Andy, Joe, Mai, or Billy at the character selection screen.
Information in this section was contributed by ng wei sheng kenny.

King Of Fighters '95 characters:
Hold Start and select Ryo, Robert, Yuri, or Kyo at the character selection screen.
Information in this section was contributed by ng wei sheng kenny.

Call for help:
Quickly press A + B + C if your fighter is held to have an undefeated teammate enter the match.

Select winning pose:
Press A, B, or C after the last attack, before the pose sequence begins. If your character is the losing fighter, press A, B, or C on controller two at this time.

Expert survivor mode:
Highlight the "Survivor Mode" option then press A + C to play a more difficult version.