• 32 Immediately playable characters plus 4 classic characters!
• The new Aggressor Kombat Mode arms the quick & merciless with
  more strength and power to inflict heavy, damaging combinations.
• Over 30 moves and "-alities"
• New Brutalities let you pound opponents 'til they explode!
• 7 humiliating Stage Fatalities that send defeated opponents
  plummeting out of the arena to a grizzly death.
• ...You have no choice. Defeat Kahn's deadly Warriors or die trying.

Discussion
As mentioned in the PlayStation review, Mortal Kombat Trilogy could have been an impressive undertaking were it not for some short sighted planning. The game is essentially Ultimate Mortal Kombat 3 with older characters tossed it. While this sounds great, the issues begin popping up after a few rounds.

The older characters had to be reprogrammed to fit into the combat system, and since they had no extra animation like newer characters for the combo sets, you’ll see the same animation play over too many times. In fact, Raiden’s Brutality, in which the character is supposed to do a long combo chain into an explosion, is only two moves done about 20 times.
The bigger issue is difficulty. Even on the easiest settings, the game will cheat, and it will cheat hard. This is made worse by the game’s new Aggressor tactic. Essentially a Super Meter, when it builds up you’re granted extra damage. With the way the dial-a-combo system works, this means you can essentially kill someone in two combos.

Between the PlayStation and Saturn version, there’s a slight nod to the Saturn, but overall the PlayStation version is better. The Saturn version has an odd graphical issue with transparencies, where it’s actually a single color checkerboard-style with clear sprites. This causes shadows, the health bars, and move special effects to look very odd. Also, if you uppercut a person through the floor, if the stage you went into was previously played, the game sets the next stage based on that. Essentially it’s possible to go through an entire game on only three stages.

On the positive side, I did find it easier to play and perform combos on the Sega Saturn pad. Plus the 6 Button thumb lay out means you don’t need to use the Shoulder buttons to tap out the Fatality moves.

Essentially the game series' swan song before making a come back with Deception, Mortal Kombat Trilogy has sadly become more relic than classic.
 

• There is a file called ABS on the disc then when opened, is a simple text file that describes the game. The complete text follows, and yes, that typo IS on the disc:
  
  Mortal Kombat Trology
  MK Trilogy is a two player, side scrolling fighting game.
  Saturn Version by Point of View, Inc.
   
• Daniel Pesina, most famous for playing Johnny Cage as well as other characters, wound up in a bit of a jam during MKII's life span. For whatever reason, Mr. Pesina and Midway parted ways, leaving Pesina's brother Carlos to still work for the company.
  
  This rift would eventually grow when Daniel allowed himself to be photographed "in costume" touting the arcade game BloodStorm, with the text reading something to the effect of, "Play BloodStorm, the game endorsed by Johnny Cage."
   
• Besides the PlayStation version, there was also an N64 version. The Nintendo game featured an exclusive character, but suffered horribly from slowdown, poorly ported characters, and some sound issues.
   
• Due to logistical issues, the Pit II's Stage Fatality was disabled.
   
• There were over 30 new moves and "-alities" created for the game.
   
•  Because of the above issues, when Johnny Cage was resurrected for the series, a new actor was brought in with a slight costume redesign.
   
• There have been repeated Bug / Glitch Issues with all versions of the game, though the Saturn has confirmed issues with some of the fringe character's "-ality" moves not working or being animated wrong.