This may be helpful. Feel free to add any for versions of the game.
Mortal Kombat II
Arcade/ Midway Arcade Treasures/ PS3
Scorpion's mysterious air throw (Works on Genesis, 32X, Saturn, SNES)-
As Scorpion, make your last move an air throw to the corner. Player 2 will land first and can Babality or Friendship before the dizzy animation occurs. Also if you are on the Dead Pool Stage, you can uppercut Scorp/Shang into the acid. If timed right you can do things like double babalities, double friendships, Dead Pool Fatality on babies, and so much more.
Kitana's moving Fan Lift (Works on Genesis, 32X, Saturn, SNES)-
Easiest to do with a teleporter. Start the Fan Lift and have the other person teleport. Walk behind and push Kitana by walking. Her sprite should be moving in the Fan Lift but the aura from the lift should stay in place.
Baraka-Kitana blood splatter (Works on Genesis, 32X, Saturn, SNES)-
As Baraka make sure that Kitana has one hit left and she is in the corner. Start doing the blade fury motions as Kitana starts the fan toss motions. Time it correctly and Baraka' fury will collide with Kitana's fan and sprite causing her to get stuck and blood will splatter everywhere.
Female ball breaker (Works on Genesis, 32X, Saturn, SNES)-
As Cage, you must be fighting Shang Tsung and have him morph into Kitana or Mileena and as the animation changes, you can do the ball breaker. If timed right the female will be stuck in the "ground freeze" animation until the next hit. However, if you are trying to combo from this, it is blockable.
Shang Tsung AI glitch (Works on Genesis, 32X, Saturn, SNES)-
As of right now, it is only known that the AI can do this. When fighting Shang, force him to morph into Kitana. When the morph count time is about to force him back into Shang, jump at him so he automatically so Shang does the fan lift. If done right, thanks to programming, instead of seeing Kitana's square wave sprite, you will see Shang fly at you with a JP.
After Effects of the Tomb Pit (Works on Saturn)- After executing a Pit fatality on the Tomb Stage, you can do other manuevers, such as Lao's Spin or Scorpion's Spear. With some characters you can even pull a Friendship
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SNES
TUG glitch- (only with Johnny Cage or Shang Tsung) Causes an invisible hit and if you are Shang Tsung, you can get projectiles stuck in air. Also creates crazy combos, mostly blockable though, but some aren't.
1. As Cage (of if Shang morph into Cage) stand on one side of the screen and your opponet on the other.
2. Start throwing High Fireballs until they dissappear, usually after 2.
3. Do a Shadow Kick or Shadow Uppercut. If done right the Shadow will appear higher than Cage's sprite creating a invisible hit.
4. (If you are Shang Tsung) When he unmorphs, stay as Shang or morph into Liu, Reptile, Sub, Kitana, Mileena, Baraka, Scorpion or Raiden and throw a projectile. (It only works with their projectile because as Kung Lao or Jax it'll send the projectile through and as Cage it'll only remove the invisible hit.) If you like to see, you can AFTER unmorphing morphing into Raiden to see his teleport go crazy or Kung Lao and see the aura from the spin be where the Shadow Kick was done.
4 on 4 Kombat-
At the Start game screen, Hold L and R and press start. You will see a selection screen that lets you and your opponet select 4 characters.
Fight 4 on 4 in Goro's Lair-
Do the tourney trick and make sure you will be on the Portal Stage. Wait for a toasy and press down start. You will go to Goro's Lair but the opponet will be "computer controlled" throughout the match. You and the computer will have the same characters picked from the 4 on 4 match. The first person will be extremely difficult. After defeating the first person, the second, third, and fourth will just stand there for practice or they will jump like crazy or duck. It depends on how you defeat the first opponet.
Kitana's Fan Toss lift-
Do a fan throw in the air, and before you land, start doing the motion for the fan lift and hit the last B, HP on the ground. If done right, you will do a lift and the opponet should be stuck in a "ground freeze" animation. However this works best on the cpu since it is blockable.
Bike Kick Crash-
When fighting as Liu, make sure your opponet is Cage. Do a Shadow Uppercut with Cage. At the highest point , do Liu's bike kick. If timed right the game will crash and Liu's sound will loop for a little while.
Mortal Kombat II
Arcade/ Midway Arcade Treasures/ PS3
Scorpion's mysterious air throw (Works on Genesis, 32X, Saturn, SNES)-
As Scorpion, make your last move an air throw to the corner. Player 2 will land first and can Babality or Friendship before the dizzy animation occurs. Also if you are on the Dead Pool Stage, you can uppercut Scorp/Shang into the acid. If timed right you can do things like double babalities, double friendships, Dead Pool Fatality on babies, and so much more.
Kitana's moving Fan Lift (Works on Genesis, 32X, Saturn, SNES)-
Easiest to do with a teleporter. Start the Fan Lift and have the other person teleport. Walk behind and push Kitana by walking. Her sprite should be moving in the Fan Lift but the aura from the lift should stay in place.
Baraka-Kitana blood splatter (Works on Genesis, 32X, Saturn, SNES)-
As Baraka make sure that Kitana has one hit left and she is in the corner. Start doing the blade fury motions as Kitana starts the fan toss motions. Time it correctly and Baraka' fury will collide with Kitana's fan and sprite causing her to get stuck and blood will splatter everywhere.
Female ball breaker (Works on Genesis, 32X, Saturn, SNES)-
As Cage, you must be fighting Shang Tsung and have him morph into Kitana or Mileena and as the animation changes, you can do the ball breaker. If timed right the female will be stuck in the "ground freeze" animation until the next hit. However, if you are trying to combo from this, it is blockable.
Shang Tsung AI glitch (Works on Genesis, 32X, Saturn, SNES)-
As of right now, it is only known that the AI can do this. When fighting Shang, force him to morph into Kitana. When the morph count time is about to force him back into Shang, jump at him so he automatically so Shang does the fan lift. If done right, thanks to programming, instead of seeing Kitana's square wave sprite, you will see Shang fly at you with a JP.
After Effects of the Tomb Pit (Works on Saturn)- After executing a Pit fatality on the Tomb Stage, you can do other manuevers, such as Lao's Spin or Scorpion's Spear. With some characters you can even pull a Friendship
------------------------------------------------------------------------------------
SNES
TUG glitch- (only with Johnny Cage or Shang Tsung) Causes an invisible hit and if you are Shang Tsung, you can get projectiles stuck in air. Also creates crazy combos, mostly blockable though, but some aren't.
1. As Cage (of if Shang morph into Cage) stand on one side of the screen and your opponet on the other.
2. Start throwing High Fireballs until they dissappear, usually after 2.
3. Do a Shadow Kick or Shadow Uppercut. If done right the Shadow will appear higher than Cage's sprite creating a invisible hit.
4. (If you are Shang Tsung) When he unmorphs, stay as Shang or morph into Liu, Reptile, Sub, Kitana, Mileena, Baraka, Scorpion or Raiden and throw a projectile. (It only works with their projectile because as Kung Lao or Jax it'll send the projectile through and as Cage it'll only remove the invisible hit.) If you like to see, you can AFTER unmorphing morphing into Raiden to see his teleport go crazy or Kung Lao and see the aura from the spin be where the Shadow Kick was done.
4 on 4 Kombat-
At the Start game screen, Hold L and R and press start. You will see a selection screen that lets you and your opponet select 4 characters.
Fight 4 on 4 in Goro's Lair-
Do the tourney trick and make sure you will be on the Portal Stage. Wait for a toasy and press down start. You will go to Goro's Lair but the opponet will be "computer controlled" throughout the match. You and the computer will have the same characters picked from the 4 on 4 match. The first person will be extremely difficult. After defeating the first person, the second, third, and fourth will just stand there for practice or they will jump like crazy or duck. It depends on how you defeat the first opponet.
Kitana's Fan Toss lift-
Do a fan throw in the air, and before you land, start doing the motion for the fan lift and hit the last B, HP on the ground. If done right, you will do a lift and the opponet should be stuck in a "ground freeze" animation. However this works best on the cpu since it is blockable.
Bike Kick Crash-
When fighting as Liu, make sure your opponet is Cage. Do a Shadow Uppercut with Cage. At the highest point , do Liu's bike kick. If timed right the game will crash and Liu's sound will loop for a little while.