Street Fighter 3: 3rd Strike - Fight For The Future

Switch screen resolutions:
Hold L + Start at the Capcom logo to switch to a de-interlaced screen. Hold Y + Start at the Capcom logo to switch to a low-resolution/anti-aliased screen. To switch back to high resolution interlaced mode, hold Start + X at the Capcom logo.
Information in this section was contributed by Arlieth Tralare.

Fight as Gill:
Successfully complete the game with every character. You may use continues, but not change characters. After this is done, highlight Yang and press Down or Yun and press Up.
Information in this section was contributed by Arlieth Tralare.

Fight as Slamdunk Sean:
Press L or R while selecting Sean. Note: Slamdunk Sean is the Parrying (Basketball) bonus stage version of Sean.
Information in this section was contributed by Louie.

Extra options:
Successfully complete the game with fifteen different characters with the system set at "Normal". This will not work if it is set to "Original". This will unlock an extra options menu and Gill.
Information in this section was contributed by Kipmokirk.

Alternate costumes:
Successfully complete arcade mode with any character, then save the game. Highlight any fighter, then hold Start and press an attack button at the character selection screen to change his or her costume color.

Taunt:
Press L + R trigger to taunt your opponent.
Information in this section was contributed by Max Buono.

Change levels in Sean's bonus stage:
Hold Down + LP + MK + HP when you reach Sean's bonus stage for a harder level. Hold Up + LK + MP + HK when you reach Sean's bonus stage for level 5.

Hint: Akuma: Moves:

Hidden Power: With a maxed special, press Down(3), X + Y.
Information in this section was contributed by BigJC38.

Raging Demon: When a maxed special, quickly press Jab or X(2), Forward, A, L.
Information in this section was contributed by Stan.

Earthquake: With a maxed special, press Down(3), 3P or X + Y.
Information in this section was contributed by Stan.

Hint: Gill: Strength enhancer:
Perform Gill's taunt. If he does it successfully, his strength will be enhanced. This works for his normal moves and his Super Arts. However, it will not work if Gill is hit during the taunt, and will work for only one move. To enhance his strength again, you must perform his taunt again.
Information in this section was contributed by Sakazaki Takuma.

Hint: Twelve: Invisibility:
Once in battle, stand still and press L + R. Twelve will lift his arm in the air and you will become invisible. If you get hit you will become visible again. You can only be invisible for a limited amount of time, so use it wisely.
Information in this section was contributed by Max Buono.

Hint: Defeating Gill:
Try your best to win the first round because Gill uses Revival when you defeat him in the second round. When he rises, jump up and kick him to stop the Revival short. Then, use your finisher to end him quicker.
Information in this section was contributed by Stan.

Hint: Easy points:
When reach the bonus stages (when you must destroy things), repeatedly do your special attack. The quicker you destroy things, the more points you get.
Information in this section was contributed by Max Buono.