Beast Mode
Clear arcade mode 15 times
Big Arms Mode
Beat arcade mode five times to unlock this.
Big Head Mode
Beat Arcade mode 4 times to unlock big head mode.
Com Battle
Complete Arcade Mode two times to unlock the Com Battle.
Cronos the Phoenix
Beat the game twice where Cronos is the end boss to unlock the strange Cronos the Phoenix character.
Final Round (breakable walls)
Complete Arcade Mode eight times to unlock the cheat ''Change Boundaries - Final Round'' (walls are breakable only in the final round).
Ganesha the Elephant
Beat the game one time to unlock the powerful Ganesha the Elephant character.
Human Mode
Clear arcade mode 14 times
Hyperbeast Mode
Clear arcade mode 16 times
Kid Mode
To unlock kid mode(Super Deformed), beat the game 3 times.
Knock Down Battle
Complete Arcade Mode thirteen times to unlock the cheat ''Knock Down Battle'' (every hit knocks your opponent away).
Max Difficulty
Beat the Arcade Mode 12 times to unlock it.
Movie Player
Beat the game once
No Blocking Mode
To unlock this challenging mode, beat Arcade Mode 11 times.
No Walls
Complete Arcade Mode six times to unlock the cheat ''Change Boundaries - No Walls''.
Play as Kohryu
To play as Kohryu, play arcade mode without losing a ROUND (not a match, a round), untill you fight against Kohryu (5th match). Continue to beat arcade mode and he will be unlocked.
Slow Motion
To slow things down, choose this option in the Cheats menu after beating the arcade mode 9 times.
Speed things up
To increase the speed while fighting, choose this option in the Cheats menu after beating the arcade mode 10 times.
Super Buff Mode (DK)
Complete Arcade mode 5 times to unlock "Super Buff"
Uranus and the Chaos Lab Stage
Beat at least 16 characters in survival mode. The 16th opponent should be Uranus in the chaos lab stage. Defeat her and both will be available.
Weak Walls
Beat arcade mode seven times to unlock ''weak walls'' in the cheat menu.