Seriously. The site was lacking of anything of importance regardin' this. A lot more people seem to be fixated on the PSX, PC, and Sega Saturn versions of the game than the underrated N64 version so here we go
The N64 version of MKT was released months after the other versions. Modifications had to be made to fit the limited cartridge space. Naturally, things were taken out while the port compensated by adding in exclusive content, so lets overview
Roster: As many or some don't know, this version had a portion of the cast scratched out to fit the cartridge space. 'Classic/MKII/MK' versions of the characters were removed from the game, leaving behind only Raiden and Baraka as the returning fighters from MKII. However, this was more of a wise move as only those two classic characters had more than one Fatality that would translate well with the spriteset as well as an Animality to go with them. While the game doesn't have the secret character Chameleon, he is replaced by a more complete female counterpart named Khameleon, a hidden female ninja clad in gray who could mimic the moves of all female ninjas. Unlike Chameleon, she could be unlocked so that she could be selected from the character select screen. Bosses aren't playable from the get go and Goro and Kintaro are removed. Shao Kahn and Motaro are playable with a code which will be covered in the next section. Sub-Zero is not in the game though his moveset and story has been fused with Classic Sub-Zero's making him a much more powerful character.
Bosses: As mentioned before, Goro and Kintaro were removed from this point and Shao Kahn and Motaro are no longer selectable though they can be made playable temporarily through a code though one has to be at a specific stage. Changes were made to these two. Both use their MK3/UMK3 moveset, but the big difference is that both now have their own Fatality. Motaro can also move whilst kicking, making him broken as he can easily trap an opponent into the corner and prevent them from escaping.
Stages: All but two of the stages are in this port which excludes The Bank from MK3 and Kahn's Arena from MKII. A new stage was included in this port: the Star Bridge, which contains a secret. The Star Bridge uses the foreground of the Pit II and a starry backdrop, hence the name. Stage reels are also different here. Minor graphical changes. The Lair, The Armory and Kombat Tomb are all now intertwined, making the only ever instance in a series where a three-tier reel is present.
Unlockables/Secrets: Unlockables in this port are more prominent in this version than its competitors. Most notably is the Lost Treasures, which is far larger than any other iteration of MK3. A second row of unlockables is added to the first row, which has more options as well. These mostly consist of content that were previously only viewable through the 'Random Prize' selection while some has exclusive mini games. Ping Pong and a slightly modified version of Galaga are available. Unlike the other ports, this version actually has an Ultimate Kombat Kode. The kode uses six digits like normal Kombat Kodes as opposed to the ten. B is the first slot. C Left is the second. C Up is the third. C down is the fourth. L is the fifth and R is the sixth. By entering 113-840, Human Smoke and Khameleon become playable. Two Question Mark options are also available through this port, which allows typical Kombat Kode effects like Unlimited Run to be activated without a kode to the much more pivotal Collision Box option which is quite useful for pros. While there are no One-Button Fatalities there is an Infinite Fatality Time option in its place to give players more incentive to memorize inputs in otherwise normal play. Finally, secret Endurance-laden ladders can be unlocked by pressing Start and Down while highlighting Kano, reccommended for expert players.
Misc.: A 3-on-3 Kombat option is available, allowing for longer multi-kombat action. Johnny Cage has a Super Shadow Kick Fatality in place of his Backbreaker one and has the infamous Triple Uppercut Fatality. Sound is a bit lower in quality. Sprite quality is still intact, save for missing frames. Auto Kombos are slightly faster in this version. Supreme Demonstration shows all but one finisher in the game and that's Scoprion's Hellraiser. Rain now has Reptile's fighting stance animation.
The N64 version of MKT was released months after the other versions. Modifications had to be made to fit the limited cartridge space. Naturally, things were taken out while the port compensated by adding in exclusive content, so lets overview
Roster: As many or some don't know, this version had a portion of the cast scratched out to fit the cartridge space. 'Classic/MKII/MK' versions of the characters were removed from the game, leaving behind only Raiden and Baraka as the returning fighters from MKII. However, this was more of a wise move as only those two classic characters had more than one Fatality that would translate well with the spriteset as well as an Animality to go with them. While the game doesn't have the secret character Chameleon, he is replaced by a more complete female counterpart named Khameleon, a hidden female ninja clad in gray who could mimic the moves of all female ninjas. Unlike Chameleon, she could be unlocked so that she could be selected from the character select screen. Bosses aren't playable from the get go and Goro and Kintaro are removed. Shao Kahn and Motaro are playable with a code which will be covered in the next section. Sub-Zero is not in the game though his moveset and story has been fused with Classic Sub-Zero's making him a much more powerful character.
Bosses: As mentioned before, Goro and Kintaro were removed from this point and Shao Kahn and Motaro are no longer selectable though they can be made playable temporarily through a code though one has to be at a specific stage. Changes were made to these two. Both use their MK3/UMK3 moveset, but the big difference is that both now have their own Fatality. Motaro can also move whilst kicking, making him broken as he can easily trap an opponent into the corner and prevent them from escaping.
Stages: All but two of the stages are in this port which excludes The Bank from MK3 and Kahn's Arena from MKII. A new stage was included in this port: the Star Bridge, which contains a secret. The Star Bridge uses the foreground of the Pit II and a starry backdrop, hence the name. Stage reels are also different here. Minor graphical changes. The Lair, The Armory and Kombat Tomb are all now intertwined, making the only ever instance in a series where a three-tier reel is present.
Unlockables/Secrets: Unlockables in this port are more prominent in this version than its competitors. Most notably is the Lost Treasures, which is far larger than any other iteration of MK3. A second row of unlockables is added to the first row, which has more options as well. These mostly consist of content that were previously only viewable through the 'Random Prize' selection while some has exclusive mini games. Ping Pong and a slightly modified version of Galaga are available. Unlike the other ports, this version actually has an Ultimate Kombat Kode. The kode uses six digits like normal Kombat Kodes as opposed to the ten. B is the first slot. C Left is the second. C Up is the third. C down is the fourth. L is the fifth and R is the sixth. By entering 113-840, Human Smoke and Khameleon become playable. Two Question Mark options are also available through this port, which allows typical Kombat Kode effects like Unlimited Run to be activated without a kode to the much more pivotal Collision Box option which is quite useful for pros. While there are no One-Button Fatalities there is an Infinite Fatality Time option in its place to give players more incentive to memorize inputs in otherwise normal play. Finally, secret Endurance-laden ladders can be unlocked by pressing Start and Down while highlighting Kano, reccommended for expert players.
Misc.: A 3-on-3 Kombat option is available, allowing for longer multi-kombat action. Johnny Cage has a Super Shadow Kick Fatality in place of his Backbreaker one and has the infamous Triple Uppercut Fatality. Sound is a bit lower in quality. Sprite quality is still intact, save for missing frames. Auto Kombos are slightly faster in this version. Supreme Demonstration shows all but one finisher in the game and that's Scoprion's Hellraiser. Rain now has Reptile's fighting stance animation.