Via my Japanese Xbox Live Gamer tag, I downloaded the Zagapain XOR demo.
It's passable, but I'm not fluent in Japanese, so I'm struggling a bit on what exactly, I'm supposed to be doing.
The intro cut-scene is nice (as are the dashboard set-ups at the beginning of the mission), but I'm not sure if the game "feels" next-gen to me. Plus, the targeting feels a bit off -- kind of like the Xbox Robotech BattleCry.
I'll play it some more and see if I choose to like to more.