Alright, joined the site just to put my two cents in. Here I go!
Morrowind: Yes, that's right. Although, I'll be fair here- I played Oblivion first. And the game can't seem to go an hour without falling victim to have some fatal error (...but I am playing it on Vista, so that may count for something).
World of Warcraft: My first MMO. From what my step-brothers told me, this was the shit. I just couldn't get THAT into it. I kind of thought it WAS shit. A little.
Luigi's Mansion: Let's get this straight, Nintendo. Mario games have to star MARIO. Or at least have him as a playable character. I could go on about this game for days, and next to Crazy Taxi and SSBM, this was all I had when I got my Gamecube. The game turned me off for so long that I only beat it after three years of ignoring its existence.
Grand Theft Auto: San Andreas: From the way my cousin described this, the game was the second coming of Jesus. It wasn't.
Psychonauts on the PS2: Before you aim that sniper rifle, wait. I like the game, but the load times on this version were killing me. Made it damn near unplayable. I can only stare at those birds on the loading screen for so long.
KOTOR 2: Two words: the ending. I loved the game until the ending, and felt like someone had mugged me, stolen my clothes, and thrown me bucknaked into the women's locker room.
Pokemon Stadium: First and only game I ever preordered (I was in elementary school, okay?). I expected a 3D version of the one of the Game Boy games, complete with an actual adventure. Still waiting, Nintendo...
Pokemon Trading Card Game: The only saving grace this game had going for it was that it was a present. So I spent no money. Was still excited, it was still Pokemon. But no, I couldn't take it.
And, the worst offender of all... for me at least...
Shadow the Hedgehog: FUCKING. KILL. GAME. DESIGNERS.
This game makes me sick. Really. I nearly threw up by looking at it in motion, and got a headache from playing it. Let's get some things straight, okay, Sega? I know someone over there's trying to kill Sonic (haven't played the 360 version and don't plan to), but please. If you want to make anymore Sonic games and have them make MONEY, follow these steps.
1) You don't replace the entire voiceover cast unless they've died without warning, or are unavailable due to sickness or are too busy. Almost the entire 4Kids cast that showed up for the game (excluding Eggman, since he actually did OK and his original actor is now dead) was shit. Bring back the old cast, or failing that, at least bring back the guys who did the voices for Sonic, Knuckles, and Shadow in Sonic Adventure 2.
2) SONIC. GAMES. DO. NOT. USE. GUNS. OR. USE. VEHICLES. (Excluding the shooting stages on the Sonic Adventure games- those were awesome.)
3) Why don't I feel like I'm going fast? What happened to the sense that I was fast? The Sonic Adventure games had this down pat! WTF, Sega. WTF.
4) Regular enemies in Sega games are supposed to die in one hit. ONE HIT! How do you screw something up that's been standard since THE ORIGINAL SONIC GAME?!?
5) I've heard that the camera in all 3D Sonic games was crap. I never had a problem with it in either of the Gamecube ports of the Sonic Adventure games. This game? I've died more times than I can count because the camera moved while I was jumping, causing me to fall into a dark abyss.
God damn it. Shadow should've stayed dead after the ending of Sonic Adventure 2. Call me a bleeding heart, but I actually cried at the ending. I liked the sense of closure.
For the sake of being different, I'll add games that exceeded my expectations when I didn't expect much.
Portal: Again, I was being told that this was the shit, and I was reluctant to buy into the hype. The world was right this time. The cake, though? It was a lie.
Disgaea 1 & 2: It's not everyday that a game claims to have humor and is right. It's also not every day that I don't have any form of regret for buying a game at full price, let alone two.
Sam & Max: Season One: See Portal and Disgaea.
Psychonauts on the PC: Played this after the abysmal PS2 version and fell in love with it. All the promise, none of the problems. The Meat Circus level is still a *****, though.
Jade Empire: I am amongst the few that actually like this game. The combat isn't a turn-off, and the characters are well-drawn out (I'll attach the bombs to golden bananas. Stops thieves, monkeys, and monkey thieves in one go.)
Summon Night: Swordcraft Story: Got it for $20. Best $20 I ever spent. EVER.
In short, I love games with an actual sense of humor. All the other games I've played in my life have relatively stayed true to my expectations.