the sound quality on this is awesome, the graphics are "tron legacy like" and the controls are easy to use, in that you don't really have to control anything apart from place your weapons. They fire automatically!
You are awarded points for every enemy you kill, points you can then use to upgrade your weapons or even post new weapons on ground!
Geodefense Swarm is a welcome addition to the Xbox live collection, it's got the quality.
You can buy GeoDefense Swarm for $2.99 from the Marketplace