These are the moves for
Mortal Kombat 2. Only some of the special moves, and none of the finishing moves, are applicable to other MK games.
Special Moves
Blade Spark: Down, Down/Back, Back, High Punch
Blade Fury*: Back, Back, Back, Low Punch
Blade Swipe: Back + High Punch
Finishing Moves
Decapitation: About a step away, hold Block, press Back, Back, Back, Back, release Block, High Punch
Impaler: About a step away, press Back, Forward, Down, Forward, Low Punch
Babality**: Forward, Forward, Forward, High Kick
Friendship** : <Block>Up, Up, </Block> Forward, Forward, High Kick
Dead Pool: Hold Low Punch and Low Kick, then approach the victim and press Down and High Punch
Kombat Tomb/Pit II: Forward, Forward, Down, High Kick
* While executing this move, the fact that you're crouching prevents you from being hit by certain projectiles
** Of course, you cannot do a babality or friendship if you've done any punching in the winning round