Fight as Gold or Silver Dural
At the character selection screen press [Down], [Up], [Right], [Delete] + [Left]. A sound will verify entry.

Slow motion replay
Simply hold [Delete] + [End] + [Page Down] at the end of a round.

View credits
Simply hold [Delete] during the opening demonstration screens.

Extra options
Just press [Up] twelve times, then [Enter] at the "Press Start" screen. Then go into the options screen. The phrase "K.O." will be spoken to verify entry. Then highlight the "Exit" option, then press [Down]. The cursor will go away. Then press [Delete] to display extra options, including ring size and stage select.

Control watch mode camera
Simply press [F7] during watch mode.

Victory stance select
Just hold [Delete], [End], or [Page Up] before your character begins a victory stance.

Dural's statistics on records screen
Just press [Up] seventeen times, then [Enter] at the "Press Start" screen. Then go into the options screen. The phrase "Ring Out" will be spoken to verify entry.