I can't say I've ever played a game that I actually hated. I tend to do a bit of research before making a purchase, so I at least have a good idea I won't hate the game. There have been a bunch that I regretted buying, but none I have actually hated.

Resident Evil series - I like horror movies and I like watching people play Resident Evil, but I'll admit I get too freaked out to play them on my own. So much so that I lose all enjoyment out of playing the game.

NBA Showtime - this was the follow-up to NBA Jam, and quite possibly one of the worst bastardizations of a game I've every seen. Granted I think I've only played the N64 version, but it is TERRIBLE. Just one of those games that puts a sour taste in your mouth and ruins your day. Especially when you have such fond memories of the game it's based on.

*twitch* Dammit, I'd happily suppressed the memory of one game until I started thinking about this topic. Perhaps the only game I've actively hated (rather than simply not liking):

Conquest Earth

Since all I can muster is a string of swearing and incoherent screaming, I'll let Gamespot describe it:

I also seem to remember that you had to click on the enemy unit every time you wanted your units to fire. After spending hours with the manual trying to decipher the horrible interface, I uninstalled the game and managed to forget about it. Until now. Curse you, MechaSlinky!

Mario Party 2 (or 3?) - A friend picked this up because it was supposed to be fun to play in a group. So 3 of us start playing with 1 CPU character. After hammering the hell out of the controller for about an hour only to have the CPU controlled Mario own us in almost every single mini game he tossed the N64 cart in a closet and we never got it out again.

Castle of Tharrogad, the pretend sequel to the mighty Dungeons of Daggorath. The mouse control was odd, the attempt to impove the graphics by coloring everything was rather ugly. What sound there was seemed almost pointless. The creatures weren't that exciting. I don't remember any of the items, though at the time I think that was the one redeeming quality. Of course, it didn't help that the verison we had seemed to be bugged, and the only apparent exit from the third level returned you to the third level.

The Bigs for the Wii. The first time i heard of it, I was over-joyed to see a real baseball game coming out for the Wii, wii sports had given me a pleasant but not quite filling taste. Then as time went on and I read more, I became less and less excited. When I read an interview with someone involved in the making of the game, who basically stated that they had taken the 'boring game of baseball' and made it 'interesting and exciting', I knew I would hate it. Unfortunately, I hadn't made my change of heart clear to my wife, and since the game came out on my birthday, she picked it up for me. I tried really hard to find some redeeming quality in the game. It just couldn't be done.

YES.

Yes. I tried to love the game very much, I tried to understand and experience its appeal, but it just didn't work for me. And I love sim games and played a lot out of SimGolf, which had its own Sims to take care of. In SimFarm, on the other hand, you can run over cows with a tractor!

Army of Two: Should only be played for laughs.

Turning Point: Should never be played by anyone.

Second.

Just make a game where you level up every thousand clicks, why bother with the graphics interface?

Since I rarely make it through a game that I DO like, if there are signs of me not liking it, I really don't get through it. I will, therefore, name a thing instead of a game.

Flat Rate MMORPG Pricing.

I have two kids, a dog, a cat, a yard to mow and dig snow from, a job to go to, a wife to interact with, etc. etc. I find it infuriating that no one has come up with a pricing scheme for me. I get to play games maybe 2-3 hours a week -- maybe... on a good week. Would I like to occasionally dabble in the single player elements of World of Warcraft or Age of Conan? Definitely. Am I willing to do it while paying $15 freaking dollars per month to help subsidize everyone that can play 96 hours a week? Hell no. Why do they not have some type of per hour charge payment option where I pay per the hour up to a maximum per month? It can even be a HIGHER maximum than the flat rate monthly charge.

I do not understand how people will actually pay the $15/month, and not even play during that month. Some people have more money than sense.

Chakan: The Forever Man Boy howdy, that was the last time I ever bought a game based on the box description. (I was 10 at the time) Bad controls, absolutely no feedback on whether you've hit an enemy or not, and no idea where you're supposed to go.

Super Mario Sunshine I actually enjoyed some parts of it. The boss fights were enjoyable enough, and cleaning up the town could be fun. But those confounded outer-space jumping puzzles made me hate the game with the fire of five hundred binary suns. I've never understood the drive so many game designers have to get the player used to a certain control scheme, then changing it completely. Gah!

It's hard to think of a game I hated because I tend to erase the memory of their awfulness from my mind. Deep fighter on the Dreamcast is one candidate. I convinced myself, through the power of wishful thinking, that the game would be good despite the reviews only to find that the reviews were right and it sucked.

Edit: I added all this: I have an irrational and completely unjustifiable hatred of the Metal Gear Solid series. I've never played them (I said it was unjustifiable) and it might be something to do with the fact that I've never owned a Playstation. I think we all have a tendency to hate/dislike games that are on consoles we don't own (yeah one iteration was on xbox but by then I was confirmed in my opposition to the game.) Another reason is that so many people seem to love the franchise and yet everything that is said about the games makes me run a mile. The convoluted, silly and downright incomprehensible plot and the clunky 'three button minimum' controls sound like my worst gaming nightmare.

Halo I hate halo. It's so boring and slow. The story is lame the color pallet is lame and the gameplay puts me to sleep. I love FPS' and this to me is at the bottom of the rung.

When I play it's multplayer I feel like I am running in water.

JRPGS The only J RPG's I got into were Xenogears ,Vagrant story, and FF3/6. The rest are all the same after those.

WIN!

I loved Pac-Man arcade. So much so that I bought a cheat book (in paperback form) that had perfect-score patterns for all the levels. I memorized them all and was able to play the game virtually infinitely on a single quarter. The manager at my local arcade even gave me a t-shirt with the arcade's name and logo (Play It Again Sam) after he saw how good I was at the game.

Many people think that mainstream gaming started with NES, but Pac-Man's release caused quite a stir in the public eye. I remember there was a full front-page splash article in the Washington Post's Style section during the week of its launch.

I had to go to several stores to land a copy 'cause everyone was sold out a day or two after launch but I finally nabbed a copy at Toys R Us. I took the game home and was shaking with excitement as I popped the cart into the Atari system.

Exactly 30 seconds later I realized what a POS the game was. The maze was different, the ghosts were flickery and you couldn't see them half the time, the "pellets" were rectangles, the sound effects were garbage and to add insult to injury, Pac-Man didn't even have an "up/down" munching animation (only left/right).

I don't think I've ever been so disappointed in a game I was so hotly anticipating. It's not even like my expectations were out of whack either. I knew the system didn't have the horsepower to render Pac-Man 100% like the arcade. Yet prior to this abomination, Atari was able to successfully recreate Space Invaders, Asteroids, Missile Command and even Defender on the system...all of which I was very satisfied with.

The problem wasn't just horsepower, it was screen resolution. Pacman Arcade was taller than your average TV screen (if you look at the PSP Namco collection, you have to hold the PSP vertically in order to play Pac Man at full resolution)

I don't know why they didn't just put the maze in the middle of the screen and leave the edges blank-- kind of like widescreen when your TV falls over-- but if I had to guess I'd say it was because a lot of people played the 2600 on tiny black and white TVs rather than the larger, floor standing living room models (that's how it was in my house. The big color box was for TV. The little B&W job was for games.) so people with smaller screens wouldn't have been able to see what was going on if they started off by only using 2/3rds of the screen.

So they made a new map to work with standard TV screens.

The flickering was probably due to the way the 2600 displayed things. Those older systems weren't able to put many sprites up on a screen at one time, and if they did have a lot of sprites they couldn't appear on the same scan-line as other ones, or you'd see flicker. Given the nature of the maze, the ghosts were often on the same scan line.

As for the sounds, I found them rather endearing, but I played the 2600 version of Pac Man before I played the arcade version.