It feels (and sort of looks) like a forgotten gametype from Geometry Wars. You pilot an unarmed ship with only one means of defending itself: Steering enemy bullets into other foes. By circling your enemies you can get a whole train of missiles following you, and direct the whole lot into the opposition's hulls with a single quick maneuver.
By stringing together a bunch of kills you can build your combo meter and earn more points, points that can be exchanged for a refill of your health bar.
We're fans of the basic gameplay here, as well as the fairly derivative sights and sounds. But we think it gets repetitive just a bit earlier than we'd like. What say you about it?