Street Fighter III: Third Strike PS2 Cheats and Codes

Alternate difficulties in Sean's bonus stage:
Hold Down + LP + MK + HP when reaching Sean's bonus stage for a harder difficulty. Hold Up + LK + MP + HK when reaching Sean's bonus stage for level 5.

Extra costume colors:
Hold start when you've highlighted the character, then press any of the three punches or kicks to get a hidden costume. You must have beaten the game with a character to use any of his/her hidden costumes. To use the secret costume and press LP, HP, and MK. (beating the game with the character is not required for this costume)

Extra options:
Successfully complete arcade mode as Gill.

Fight as Gill:
Successfully complete the game with every character with the system direction set to "Normal". Gill will appear in between Yun and Yang at the character selection screen.

Fight Q in Arcade Mode:
To Fight Q in Arcade Mode don't lose a single round in Arcade mode up till the end of Stage 8. If you die, you cannot rematch him.

System Direction page 10:
Successfully complete the game with fifteen characters with the System Direction set to "Normal".

System Direction page 8:
Successfully complete the game with five characters with the System Direction set to "Normal".

System Direction page 9:
Successfully complete the game with ten characters with the System Direction set to "Normal".