Competent port overall. Nearly all the characters from the arcade game are present in addition to Rain and Noob Saibot being playable along with the bosses. There are other additions including Nightwolf's red shadow shoulder move and brutalities. The Genesis version features a exclusive port of the pong minigame which is called MK4. A negative omission from this port is that Animalities and Mercy finishing moves. Also some stages and voice clips are missing. There are more stages in this port than the SNES port though. The graphics are good and look quite close to the SNES version despite lacking in colors. The music is OK for the Genesis. Some finishing moves are also altered. Overall a good port despite some things being removed probably due to the cartridge size.

There exists a hack called Ultimate Mortal Kombat Trilogy which actually restores some features in addition to adding new things so play that for a more complete port.

This is a hack of Ultimate MK3 for Sega Genesis. It attempts to bring the Genesis port of UMK3 closer to the arcade. This means including cutscenes from the arcade and bringing back Sheeva, whom was cut from the Genesis and SNES port of UMK3.

There is also a moves list added to the Secrets cheat menu. When bosses are enabled they are playable on 1 player mode via secret character boxes which can be found by moving off the character grid. Secret characters are Human Smoke, Chameleon, and the two bosses are also selectable.

Some levels that were cut were also restored, such as the graveyard.

==Cheat Codes==
This hack uses the same cheat codes as Mortal Kombat 3. All codes must be entered at the title screen:

*Killer Kodes - C, Right, A, Left, A, Up, C, Right, A, Left, A, Up
*Cheats - A, C, Up, B, Up, B, A, Down
*Secrets - B, A, Down, Left, A, Down, C, Right, Up, Down

File Name: Ultimate Mortal Kombat 3 (U) [!].gen
ROM CRC32: 7290770D
ROM SHA-1: BF2DA4A7AE7AA428B0B316581F65B280DC3BA356

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