Select game settings in Arcade Mode while holding the X button to enter Attract Mode
Play the Sudden Death stage in Arcade Mode or Offline Versus
Play Arcade Mode or Offline Versus in ver. 2.0
Use Dural in Arcade Mode or Offline Versus (In Ver.2.1 hold START when selecting a character)
Enter ↓↓↑↑←←→→ at the character select screen in Arcade Mode
Play Ranking Mode in Arcade Mode (hold down P+K+D+START during Attract Mode)
Win a round without receiving any damage in Arcade Mode (any difficulty)
Complete Stage 5 of Arcade Mode (any difficulty)
Win a round by ring out in Arcade Mode (any difficulty)
Complete Stage 3 of Arcade Mode (any difficulty)
Complete Stage 2 of Arcade Mode (any difficulty)
Complete Stage 1 of Arcade Mode (any difficulty)