No equipment mode
Press [Left]x3, [Right]x3 at the event selection screen. The characters will start the event without any equipment.
Alternate costumes
Hold [Up] or [Down] at the character selection screen, then press [A] or [C] to select that character.
Play as Yellow Discman
Select any character in any game mode. Then, press [Up]x2, [B], [Down]x2, [B] when the loading screen with the event name appears.
Play as Pink Discman
Select any character in any game mode. Then, press [Up]x4, [B], [Down]x4, [B] when the loading screen with the event name appears.
Forward flip (Speed Ski)
Press [Up], [Down], [Left], [Right], [A] when your character appears on the Speed Ski event's introduction sequence.
Side flip (Speed Ski)
Press [Right], [Left], [Down], [Up] when your character appears on the Speed Ski event's introduction sequence.
Alternate viewpoint (Slalom)
Hold [A] during the Slalom event's introduction sequence. Release [A] after the event begins.