We’ve mentioned Ngmoco’s first iPhone 4 game two days ago, and boy it looks beautiful. The killer feature it’s not how it looks, but how it works.

MG Siegler over at TechCrunch reports:

“The game itself is simple. You pick a gun (preferably a high-powered semi-automatic one) and head to the shooting range. But the game shines thanks to the gyroscope — which is required for you to play. Rather than dragging your finger around the screen to tell your gun where to aim, you simply tilt the iPhone itself. Sure, you could sort of do this previously with the compass built in to the iPhone 3GS — but trust me, this is much, much better.

With you fingers freed up from aiming, they can do other things here — such a shoot. That’s how you fire your weapon, simply tap the screen. You can imagine that as more developers take advantage of this gyroscope, they’ll come up with plenty of innovative things you can do on the screen during games since your fingers are now freed up.”

That said, check out the videos below and start wondering about the games coming out this year.