* Play as Old-version Characters : Select your character with LP, then enter the code below while the plane flies to the top of the screen then press LP again. If done correctly you should hear a sound and your character's costume colors in their portrait should change. Old-version characters have no super combos and cannot reduce throw damage...
Old Chun Li : Down(x3), Up
Old Dee Jay : Down(x2), Up(x2)
Old Bison : Down, Up(x2), Down
Old Dhalsim : Down, Up(x3)
Old Ken : Left(x3), Right
Old Fei Long : Left(x2), Right(x2)
Old Vega : Left, Right(x2), Left
Old T. Hawk : Right(x2), Left(x2)
Old Ryu : Right(x3), Left
Old Guile : Up, Down(x3)
Old Sagat : Up, Down(x2), Up
Old Cammy : Up(x2), Down(x2)
Old Honda : Up(x3), Down

* Play as Gouki : At the character select screen, highlight Ryu and hold for 3 sec., highlight T. Hawk and hold for 3 sec., highlight Guile and hold for 3 sec., highlight Cammy and hold for 3 sec., highlight Ryu and hold for 3 sec., press all 3 punches and Start at the same time at the end of you counting.

* Gouki as Final Boss : If you reach the final stage on a single credit (no continues), you will fight Akuma instead of M. Bison.

* Each character has 8 outfit colors. Press LP to choose the new Super Turbo color, MP for the Champion Edition color, HP for the Hyper Fighting color, any Kick button or the Start button for one of 4 Super colors, or hold any attack button (except the Start button) for 3 seconds for the secret color. If you use the old version of a character, you will see that character's original "Street Fighter II" color.

* End Credits : If you beat the entire game without continuing, you will get to see the ending credits. If you don't lose a single round, the new ending artwork for each character is shown during the credits. Otherwise, you will see demos of the different characters fighting each other on various stages during the credits.