Lets see:

1. Blue Dragon
2. Eternal Sonata
3. Lost Odyssey
4. Tales of Vesperia
5. Infinite Undiscovery
6. The Last Remnant
7. Culdcept Saga
8. Oblivion + Shivering Isles
9. Mass Effect
10. Marvel: Ultimate Alliance
11. Two Worlds
12. Arkadian Warriors

Played PSU, EM, KUF: CoD, FO3, and probably another one or two.

I have not played (as of today):

Spectral Force 3
Operation: Darkness
Zoids Assault
Too Human
Fable 2
Penny Arcade 1+2

I think that's it for available RPGs on the 360.

Everything but Fallout 3, Spectral Force, Operation Darkness, and Fable 2. Out of those four, I may pickup Fallout 3 at some point. Hopefully a game of the year edition with all the DLC. After Oblivion, I'm not real gunho on Bethesda releases.

pbroy how is zoids assault it looks interesting

need to get "rise of the argnauts". forgot about that one.

Best Buy had it on clearance sale on their website for $17.99. I think they ran out online. In store it's $29.99. I haven't played it yet though. I just like to own the games. The covers are cool. n_n

RPG's I own on the 360 (I don't put the western rpg's under action rpg as they have more roleplaying then any of the jrpg's on the 360)

Fable 2
Fallout 3
Mass Effect
lost odyssey
Blue Dragon

I really like Spectral Force 3. I love Shining Force and it has the same feel as that series.

@pbroy, thanks for that info.

Fallout 3, Mass Effect