Ultimate Mortal Kombat 3

Select a two player game and enter the Vs. screen.
Press Y, B, and A on controller one to select the first three characters of the Kode,
And those same buttons on controller two for the last three characters.
Enter a valid Kode before the Vs. screen fades.
Pressing a button will cycle the specific character to which it is assigned:

Character Abbreviation Presses
Dragon D 0
MK Logo M 1
Ying-Yang Y 2
Three 3 3
Question Mark ? 4
Lightning Bolt L 5
Goro G 6
Raiden R 7
Shao Kahn K 8
Skull S 9

Enter one of the following series of controller actions at the start/options screen to display the corresponding cheat menu. Press Right, Up, B(2), A, Down, Up, B, Down, Up, B.

Hold L + R on controller two and power on the SNES.

Highlight the Smoke. Hold Away + HP + HK + Block + Run until the match starts.

Quickly tap Start on controller two, then hold Start on controller one in a one player game. Select the "Mortal Kombat" option to start a new game.