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.
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.
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.