Fighting Vipers

Complete Stage 1 of Arcade Mode (any difficulty)

Complete Stage 2 of Arcade Mode (any difficulty)

Complete Stage 3 of Arcade Mode (any difficulty)

Complete Stage 4 of Arcade Mode (any difficulty)

Win a round without receiving any damage in Arcade Mode (any difficulty)

Play Ranking Mode in Arcade Mode (hold down P+K+D+START during Attract Mode)

Hold↑and hit START during Attract Mode in Arcade Mode

Select game settings in Arcade Mode or Offline Versus while holding LB+RB to activate Kids Mode

Destroy a stage wall in Arcade Mode or Offline Versus

Break an opponent's armor in Arcade Mode or Offline Versus

Unequip armor in Arcade Mode or Offline Versus (quickly input →←→←+P+K+D)

Use Mahler in Arcade Mode or Offline Versus (at chara select, move cursor left of Grace, hit OK)

Arcade Mode: unequip Candy's armor each stage, or destroy Candy's lower armor 10 times in a row

Select game settings in Arcade Mode while holding the X button to enter Attract Mode

Select game settings in Arcade Mode while holding ↑ to unlock Candy's appearance in 2nd Attract Mode