There are several unused sprites in game's memory:

• Goro turning to stone and breaking. This was possibly meant to be used as a dying animation.
• Johnny Cage flipping backwards in the air. He has a similar move in Mortal Kombat: Deadly Alliance and in Mortal Kombat (2011) as a special move.
• Three sprites of Shang Tsung. One is of Shang Tsung laughing, which may have been intended as a win taunt. Another is of Shang Tsung clapping, which may have been intended for the background of the Throne Room stage. Lastly, there is one where he actually uses his sword during combat. Shang Tsung was also originally meant to have a Fatality where he beheaded his opponent.
Contributed by MeleeWaluigi