Hmm..off the top of my head..games I absolutely detested playing
Mighty Morphin Power Rangers, Genesis: wow, I remember being hyped about this one, imagine the disappointment when the Genesis version is a simplified, boring, slow FIGHTING game. The SNES got a perfectly good Streets of Rage clone with Power Rangers in it. "The Movie" made up for it, since it was a Streets of Rage clone, had the White Ranger in it, plus you could use the Rangers in their human forms..Kimberly..Tommy...yay! And the Megazord battles were great, but the original MMPR game for Genesis was one of my biggest disappointments ever
Final Fantasy VI: I didn't play this until the late 90's. I had been playing Phantasy Star IV, Shining Force II, and Lunar, exclusively, through out the mid 90's. I finally played it [via emulation] going in thinking it was supposed to be the best RPG ever. However, I really really didn't like it at all. I enjoyed IV, and even V, way more. Plus after VII, there was just no going back. It just seemed amazing to me that two or three years could make such a difference in the gameplay, presentation, and quality of a game..even if it's the same exact staff and company producing it...
Games I won't waste much time talking about
Katamari Damacy
Any 3d Zelda
Resident Evil 2 and beyond
Tomb Raider 3 and beyond
and lastly
Disgaea..it's a joke if you played any strategy game made before the year 2000.