Best game ever just got even better!
When I first got my hands on the original NG on the xbox, the game revolutionized action adventure, as well as what I though a difficult game would be. The original was great, then Black was even better, and now with Sigma it has reached perfection. I still have the other two but I doubt I will be going back to them since the PS3 is by far the best (granted the others were on last gen hardware). If you have never played the xbox versions and own a PS3, you NEED to own this game. Once your reflexes get up to par, the game plays extraordinarily well, the fluent mechanics of the fighting system are unmatched by any other game. The revamped graphics and level design make this iteration an improvement over the last, and with the core action packed battles still intact, the addition of new weapons, characters, and quick item menus make this game a must have for any Gaiden fan.
Just to sum up my feelings for this game: It is the only reason I bought a PS3 last week, and the total cost of damn near $700 (collectors Sigma is $75), was totally worth it.