Unlock and beat both hidden bosses to unlock Boss Challenge Mode. To access it, highlight Arcade Mode, press X + Y, then hit START.

To unlock the hidden bosses, Ultimate Rugal (Capcom Groove) or Shin Akuma (SNK Groove), beat them during the course of the game. To bring about these boss appearances, complete two of the three criteria:

• Get over 1500 GPS
• Defeat Geese or Bison/Vega
• Get one (or more) Finest KO.

To unlock Extra Options, beat the Boss Challenge Mode without continuing.

To unlock custom grooves, beat the Normal Bosses (Akuma or Regal). To make a Normal Boss appear, fulfill two of these four criteria:

• Get over 1000 GPS
• Get four or more special KOs
• Get two or more LV3 super combo KOs
• See Middle Boss