Successfully complete the game fifteen times to unlock the "Beast Mode" option.
Big kid mode
Successfully complete the game four times to unlock the "Big Kid Mode" option.
Break walls only in final round
Successfully complete the game eight times to unlock the "Break Walls" option.
Chaos Lab stage
Defeat Uranus in survival mode to unlock her Chaos Lab stage.
Com battle option
Successfully complete the game two times to unlock the "Com Battle" option.
Evil Laboratory stage
Successfully complete the game two times to unlock Cronos the Phoenix's Evil Laboratory stage.
Expert mode
Successfully complete the game twelve times to unlock the "Max Difficulty" option.
Fight against Uranus
Successfully complete the game three times to unlock Uranus. She resembles some kind of Minotaur.
Fight as Cronos the Phoenix
Successfully complete the game two times to unlock Cronos the Phoenix.
Fight as Fang
Successfully complete arcade mode with all characters (including Uranus and Kohryu). Keep selecting the "Random" option in arcade mode until Fang appears. Successfully complete the game in arcade mode as Fang to unlock him permanently at the character selection screen. Note: Fang is the third alternate costume of Yugo.
Highlight Yugo at the character selection screen and press Y once or twice until Fang's name appears.
Fight as Ganesha the Elephant
Successfully complete the game one time to unlock Ganesha the Elephant.
Fight as Kohryu
Play the game in arcade mode. Win four consecutive rounds. You will fight Kohryu in the next round. Defeat him, then complete arcade mode to unlock Kohryu the Iron Mole as a selectable character.
Note: Kohryu plays just like Bakuryu.
Fight as Uranus
Defeat Uranus in stage 16 of survival mode.
To unlock Uranus easier, unlock and enable "No walls" mode. Then, select Long or Shenlong as your fighter. Before the fight starts, run, then do their grab. You should do a ring out. Keep doing this and you will be past 21 rounds easily.
Human mode
Successfully complete the game fourteen times to unlock the "Human Mode" option.
Hyper mode
Successfully complete the game sixteen times to unlock the "Hyper Mode" option. Note: This also unlocks Kohryu the Iron Mole. Kohryu has no ending.
Indian Palace stage
Successfully complete the game one time to unlock Ganesha the Elephant's Indian Palace stage.
Kid mode
Successfully complete the game three times to unlock the "Kid Mode" option.
Knock down battle mode
Successfully complete the game thirteen times to unlock the "Knock Down Battle Mode" option.
Movie player option
Successfully complete the game one time to unlock the "Movie Player" option.
No blocking mode
Successfully complete the game eleven times to unlock the "No Blocking Mode" option.
No walls mode
Successfully complete the game six times to unlock the "Eliminate All Walls" option.
Quick fighter and stage unlock
Note: This trick requires two controllers. Enter the options menu. Set the "Autosave" setting to "On" and "Team Members" to "5". Start the game in vs. team battle mode. Choose any five characters for both teams. Press Start then select "Quit" as soon as the match begins. Select vs. team battle mode again, and repeat the same steps, immediately quitting after each match begins. Kohryu, Uranus, and Fang will be unlocked will eventually become unlocked as you do this. You must do this over twenty five times in order to unlock all the characters and stages.
Cronos and Evil Lab stage: 11 times
Fang:26 times
Ganesha and Indian Palace stage: 6 times
Kohryu: 16 times
Uranus and Chaos Lab stage: 21 times
Slow motion mode
Successfully complete the game nine times to unlock the "Low Speed" option.
Super buff (DK) mode
Successfully complete the game five times to unlock the "Super Buff" option.
Turbo mode
Successfully complete the game ten times to unlock the "High Speed" option.
Weak walls mode
Successfully complete the game seven times to unlock the "Weaken All Walls" option.