Finishing Moves for each character are listed here. The following is a simple legend:
U = Up, L = Left, D = Down, R = Right, HP = High Punch, LP = Low Punch, HK = High Kick, LK = Low Kick, BL = Block
Cage: F, F, F, HP (close)
Kano: B, D, F, LP (close)
Rayden: F, B, B, B, HP (close)
Liu Kang: F, D, B, U, F, ...
Scorpion: U, U (1/2 screen, easier if you hold BL)
Sub-Zero: F, D, F, HP (close)
Sonya: F, F, B, B, BL
To face Reptile, play a single player game and reach the Kombat Zone called "The Pit". Earn a double Flawless Victory by winning both rounds without taking any damage and never use the block buttons. Finish your opponent with your character's finishing move as well.
Start a single player game on VERY EASY. Allow yourself to lose in every fight until you reach the Kombat Zone "The Hall of Champions". The computer is now able to throw you from anywhere no matter where you or your opponent are located.
Execute Rayden's fatality on the third endurance match. Goro will appear silver colored and flashing.
Finish your opponent with a projectile weapon. Then when the next round starts, you will be able to fire that projectile again by simply pressing the button you used to fire the projectile. If you press a different button or your opponent hits, throws, or jumps over you, the trick ends.
Begin a two player game and fight until one of the kombatants is one throw away from death. Wait until one second is remaining in the timer and finish off the fighter with a throw (stand next to the opposing warrior and hit LP). When the next round begins, characters can move away from the screen.