Change Colors w/o Beating

Training Mode:
At the character history screens just type in Z, B, A, Z, A, L and you will here a voice say "welcome"

Random Character
At the character selection screen hold up and push start.

Sky Level

When at the Character Select screen and in Two-player Mode, hold down the analog joystick and press kick (the bottom C button) simultaneously. You should be able to play in the sky.

View Credits and not Beat Gargos:

The code is entered at any character profile screen Hit Z,L,A,Z,A,R. You should see the credits if done correctly.

Play Gargos:

To play as Gargos in Killer Instinct Gold:
At the character history screens just type in Z, A, R, Z, A, B and you will hear Gargos' laugh if you have done it right.

Records Screen:

To see the records menu, at the main menu screen, push Z.

Enable All Options:

Enter code at any character profile screen
Press Z,B,A,L,A,Z. You will hear "perfect" if completed successfully.

Sky Level

At the character select screen in two-player mode, hold down the analog joystick and press kick (the bottom C button) simultaneously. You should be able to play in the sky.