I am currently playing Mabinogi and MapleStory.
I would recommend Mabinogi if you don't mind point-and-click MMOs, strategy/ tactics, or timing.

No More Heroes.

Everything about it is so badass, like whoa.

Professor Layton and the Diabolic Box
Resident Evil 4
Jak X
Golden Sun

So many I'm playing this time! XD

I'm currently playing:

The Elder Scrolls 4: Oblivion (with mods, of course)
Neverwinter Nights 2, and I just purchased the Storm of Zehir expansion pack. When I'm able, I want to get Mysteries of Westgate.

Occasionally, I also play Chuzzle and Bejeweled 2.

The Elder Scrolls IV: Oblivion on PC and MGS3 on the PS2.

Also, Menewsha's TD game in the Arcade.

I'm almost finished with 'WET.' The really impressive thing is the music, in my opinion. I love it. The game is good too, though. Nothing groundbreaking, but it is fun to play. I might buy it later when the price drops.

Replaying Soul Calibur 3. ..... MAN, I suck. .___.; How am I to beat the hell out of my sisters' boyfriends if I play lackluster. D;

I am currently playing so many. xD

First, Kingdom Hearts 358/2 Days.
Then comes The World Ends With You.

After that, Shin Megami Tenshi: Devil Survivor, Pokemon Platinum, FF XII: Revenant Wings, Animal Crossing: WW, Professor Layton and the Diabolical Box, Rhythm Heaven, and a few more. xD

Revisiting the pain which is Might and Magic, NES. It doesn't have an end-boss and it's extremely non-linear - there's no sense at all of what one has to do except to reach Castle 'Doom'. I'm a bit of a masochist - I keep looking for some redeeming factor even though I know, deep down, what I see is probably all that I will get. I'm better off playing CastleVania III. Speaking of which, does anyone know if they have released that on the Wii Virtual Console yet? :/

Combination of these games when I am in the mood:

PS 1/2:
Legend of Dragoon
Kartia: Word of Fate
Persona 4
Kingdom Hearts 2
Yakuza 2
Drakenguard

PSP:
Persona
Dissidia: Final Fantasy

DS:
Kingdom Hearts 358/2 Days
Pokemon Platinum

PC -
Aion (MMO)

PS3 -
Killzone 2
Fallout 3
Bioshock
Folklore

DS -
Working way through Phoenix Wrights and similar games.

@ Somniloquy: Wow... I am impressed.

PS2-
Musashi
Devil May Cry (the original)
Kingdom Hearts II *damn Tron motorcycle*

PSP-
God of War
FFVII-Crisis Core
FF- Dissidia (jap version)

Lets see~ Mana Khemia, Ar Tonelico II, Crisis Core, and I'm re-playing KH II.

Again.

Super CastleVania IV time, for Halloween. Dig it!

I am playing Half Life, Harvest Moon DS Cute and Dead Space. There are also a lot of others I have been playing on and off.

Right now I'm working on beating starwars battlefront 2 for xbox, but I'm also doing this political simulation game online, which is pretty cool cause you get to see how different decisions on different issues change countries all around. I also like LOTR return of the king, but I've already just about beat that. Wow, I'm a nerd, lol

I recently played through Halo 3: ODST. I'll just say that I am extremely glad that I didn't buy this game. I felt jipped for the eight bucks I paid just to rent it. If I had paid $60, I'd be like those people on the Gamefly commercials screaming, crying, and tossing TVs out windows.

The best thing about the game was the Firefight mode. I'm actually glad that little extra games like this are becoming more common. Sometimes I just like to shoot stuff without replaying levels, you know?

Anyway...now I'm replaying Dead Space.

Currently playing I MAED A GAM3 W1TH Z0MBIES 1N IT!!!1

Best dollar I've ever spent. XBLA<3

Soul Calibur 3 (Old fashion, baby!)

I love Soul Calibur 3's Chronicles of the Sword over SC4's Tower of Souls thing.

Well, I just finished the second Professor Layton game, but I keep replaying the ending because I absolutely love the ending theme. Also, watching Layton fence is kickass... and the single moment his hat actually comes off of his head never fails to make me laugh.

I want the third game to come out . It's such a charming little series even though it's often incredibly infuriating when I get stuck on puzzles that I eventually find had really obvious answers.

I guess I'm playing... erm the Kingdom Hearts game on DS right now. I only bought it because I found a used copy at the Game Stop near where I work, and I figured that I might as well try it out. So far, I can't say it's all that great. Still, what they managed to do with the graphics on that little machine is rather impressive.

Ah. I played Lux-Pain it was... for lack of a better term--painful.

The story itself wasn't bad. I mostly blame whomever was in charge of the translations and the in-game text. Oh, that was just horrible.