Play as Gold Dural At the Character Selection menu, press down, up, right, delete and left. If it worked you will hear a woosh sound
Play as Silver Dural At the character select screen, enter down, up, right, delete and left. You will hear a swoosh sound effect if you entered it correctly.
Add Dural to the Records screen At the Press Start screen, enter up seventeen times then Enter. Now enter the options screen, and you should hear Ring Out. Dural's stats are now on the Records screen.
Ring Size and Stage Select At the Press Start screen, enter Up twelve times then enter. Now enter the options screen, and you should hear K.O.. Move the cursor down to Exit, then press down once more. The cursor will disappear. Press delete and a second options screen will appear.
View Credits Hold the delete button down during the opening demos to see the names of the makers of VF
Slow motion replays At the end of a round, press and hold delete + delete + end + page down and the replay will be in super-slow-mo.
View from other camera angles (in Watch Mode) Press F7.
Choose the victory taunt Hold either delete, end or page down before the character does his/her victory stance and you will be able to select which one you see. There is also one reserved for when you get an Excellent!