Mortal Kombat

Fight against reptile:
Play the game until reaching the Pit. Achieve a double Flawless victory without blocks and perform a fatality to end the match.

Hint: Move players off the screen:
Start a two player tournament battle with any of the fighters. Fight until one of the characters is one throw away from defeat. Allow the time run down until one second is remaining. Finish off the fighter with a throw (stand next to the opponent and press  B ). In the next round, either character may be moved off the edge of the screen.

Hint: Motionless opponent:
Start a one player match with any fighter (Cage or Liu Kang work the best). repeatedly jump over your opponent and kick without hitting him. Continue doing this until the CPU blocks. Then, jump back over your opponent once more time, without kicking. After landing, wait and do not press any buttons. The CPU opponent will remain motionless until hit.

Hint: Leave opponent standing:
Use Sub-Zero to defeat an opponent in the first round. During the second round, run your opponent's power meter all the way down without the "Finish Him" appearing on the screen. Use the Freeze move to ice the opponent until "Finish Him" flashes. Then, execute the finishing move. Sub-Zero will shatter the ice but leave the opponent standing.

Hint: Johnny Cage: Fatality:
Stand next to your opponent and press Forward, Forward, Forward, Y.
Johnny will kick through the opponent.

Hint: Kano: Fatality:
Stand next to your opponent and press Back, Down, Forward, B.
Kano will rip out his opponent's heart.

Hint: Liu Kang:
Stand anywhere and hold  Block then rotate the D-pad  in a full circle towards your opponent. Liu will do an uppercut.

Hint: raiden: Fatality:
Stand next to your opponent and press Forward, Forward, Back, Back, Back, Y.
raiden will electrocute the opponent.

Hint: Scorpion: Fatality:
Stand about three characters spaces away and hold Block then press Up, Up.
He will then burn his opponent.

Hint: Scorpion: Easy victory:
Select Scorpion and keep repeating his "Harpoon" move.

Hint: Sub-Zero: Fatality:
Stand four character spaces apart and press Forward, Down, Forward, Y.
Sub-Zero will freeze the opponent and break him to pieces.

Glitches:
Sindel does not pick you up when she throws you:

When Shang Tsung does his animality, your face appears in his mouth.

When Sub-Zero does the fatality where he picks you up, freezes you and breaks you apart, he puts his hands up. You will appear in his hands and the bones appear before he breaks it.

When Kung Lao throws his hat he still has his hat on.

When you do Babality on someone with their second costume, it turns them into a baby with their first costume.  For example, Lui Kang's orange pants turn red.

When Sindel does her fatality where she wraps her hair around you and spins you around, all she does is wrap her hair around you and some invisible scissors cut her hair.  There is hair on Sindel and hair wrapped around the other person.