Mortal Kombat 3 is the third game in the Mortal Kombat fighting game series, released in arcades in 1995. It was updated into Ultimate Mortal Kombat 3 in arcade and home consoles, and later Mortal Kombat Trilogy home consoles only. Mortal Kombat 3 has been released for DOS, Game Boy, Game Gear, Genesis, Master System, PlayStation, Super NES and Windows. [Info from Wikipedia]
From the Mortal Kombat Secrets website we can read about many differences in the beta builds of the game, such as early character select screen, a removed red carpet in “The Bank” stage and a removed sub-boss with two big hammers. Sektor’s original name was “ketchup”, Cyrax’s original names were “mustard” and even “Robocop” at one point, Sindel was known as “Muchacha” and Kabal’s working name was “Sandman”.
Kurtis Stryker was supposed to appear in MK1 but it was removed, then in MK2 but it was changed into Jax. Only in MK3 Kurtis Stryker made its final appearance in the series. You can find out more about the MK3 beta at Mortal Kombat Secrets!