Maskless Vega:
While the game loads up when you select Vega, hold Light Punch, Medium Kick, Hard Punch.
Opening the "Maniac Mode":
In the main menu, highlight practice and press select 5 times, left, select 5 times, down, select three times, down, select, right, select, down, select 4 times. If you do it correctly, a message will pop up on your screen.
Unlock All Bonus Games:
At the mode select screen , highlight ''Bonus Game'' , then press Select(5x) , Left , Select(3x) , Up , Select , Right , Select(2x).
Unlock All Hidden Characters:
At the Mode Select, move the cursor to Bonus Game and press:
Select, Select, Up, Select, Select, Select, Select, Up, Select, Left, Select, Select, Select, Select, Select.
Unlock Sample Data:
At the mode select screen , highlight ''Practice'' then press Select , Down , Select , Left , Select , Up , Select , Up , Select , Right , Select , Up , Select , Left , Select , Up , Select , Right , Select. The option will appear in the pause screen of ''Mania mode'' only.
Unlock vs. Bison II:
Highlight Bonus and press Select 13 times. Highlight Director and press Select 4 times. Highlight Bonus and press Select 13 times. Go to bonus games and you will find it there.
Play as Garuda:
Highlight Arcade at the main menu and press this:
SELECT, SELECT, SELECT, Right, SELECT, SELECT, Down, SELECT, SELECT, SELECT, SELECT, Up, SELECT, SELECT, SELECT.