The Dead Pool

If you want the Marvel villian see Deadpool The Dead Pool is a arena in the Mortal Kombat series. The Dead Pool debuted in Mortal Kombat II, later reappeared in several sequels and then got ported into mugen.

The Dead Pool is said to be a place for punishment and sacrifice. Captives would be bound with chains, then lowered into the acid below. Shang Tsung was said to have favored this method of punishment. The Dead Pool was a particular form of punishment sentenced to those condemned by Shao Kahn himself. The acid itself is a mass of residue of past creations from Shang Tsung's flesh pits.

Instead of a straight walkway across the acid, players fight on a square patch of concrete in the middle of the acid