Final Fantasy VII: Crisis Core, a great addition to the Final Fantasy Saga.
This game puts you in the shoes of Zack Fair, SOLDIER Second class, in his dream to become a hero. Zack is an outgoing SOLDIER who is always up to any job that is given to him, he is apiring to become a SOLDIER First Class, like his idol, Angeal Hewley.
This game has a lot of familiar characters to the final fantasy series, such as obviously, Cloud along with Tifa, Aerith, Zack, Sephiroth, Yufi, Cait Sith, and they have the summoning system back with some old faces like Ifrit, Odin, Bahamut and a couple unfamiliar ones, this game is great, but it strays from the normal quanity over quality mentallity of other Final Fantasy games, meaning that although you have the DMW, where your friends you meet will "help" you, when you are battling, you are only using Zack!
I found that a bit odd, but it allows for a whole new style of gaming, you can now dodge attacks on your own, it's not all left to chance, one of the problems I had was that you can't control the DMW, therefor you don't know when you are getting a limit break, but it doesn't really matter because they happen so often!
So, to sum this up, I'd say that this game is great for a PSP game, I wouldn't recommend bringing this concept to the PS3 system or anything, but they did a great job, and as always the soundtrack and visuals are absolutely stunning, to put it lightly!