Geometry Wars is a series of abstract, multidirectional shooters, originally created by Bizarre Creations.
All Geometry Wars games are characterized by "retro-style" graphics, a throbbing techno soundtrack and intense gameplay. The player controls a ship that can move and shoot in independent directions, as well as detonate screen-clearing "smart bombs", to face off against swarms of bright, geometric enemies which move and react in different ways based on their shape.
The goal of Geometry Wars games is usually to hold out as long as possible against an endless enemy onslaught. As the series has matured, other game modes have been introduced, but the basic run-and-gun gameplay has been retained.