Geometry Wars Is A Multicore Program?!

I love Geometry Wars on XBox360; it's a great arcade-style game that's perfect for killing a couple of minutes. Amazingly, though, it's apparently one of the few games that distributes its computation across the XBox's three cores.

I find it wildly amusing that something that is essentially an updated "Asteroids" is using three times the computational power of Project Gotham Racing 3.