Alternate Costumes
When selecting a character, hold Start before you select the character you wish to use.
Arcade Backgrounds
In training, normal or team battle mode, you can change the backgrounds to the backgrounds in the arcade version by letting the time run out in the stage selection screen.
Play as Dural
In any mode, at the character select screen, press Down, Up, Right, Left, and then Start. Press A for silver or Start + A for gold.
Submitted by Devin_C.