Mortal Kombat II cheats for Snes
Random character select - Hold Up on Liu Kang for player one (or Reptile for player two) and press Start.
Alternate introduction sequence - Hold L + R before the Acclaim logo is displayed and keep the buttons held until it disappears.
Four man endurance match (two-player) - Hold L + R, then press Start at the start/options screen.
Miscellaneous codes - Quickly enter the following controller actions at the "Select Your Fighter" screen. A sound will confirm correct code entry. More than code can be enabled as long as only one is a character code.
Thirty kredits- Press Left, Up, Right, Down, Left + Select.
Triple time for fatality moves- Press Up(2), Left, Up, Down + Select.
Extra damage on attacks- Press Down, Up, Right, Up, Left + Select.
Fight against Smoke- Press Up, Left, Up(2), Right + Select.
Fight against Jade- Press Up, Down(2), Left, Right + Select.
Fight against Kintaro- Press Up, Down(2), Right, Right + Select.
Fight against Shao Kahn- Press Right, Up(2), Right, Left + Select.
Fight against Noob Saibot- Press Left, Up, Down(2), Right + Select.
Pong mini-game - Win 250 consecutive matches in two player mode.
No throws - Select a two player game. Hold Down + HP on controllers one and two after character selection. Release the buttons after the match starts.
Mystery sound - Press Down after executing the Dead Pool fatality.