Geometry Wars: Retro Evolved 2 is the sequel to the smash hit, Geometry Wars: Retro Evolved, which itself was an expanded version of a mini game found in the game Project Gotham Racing 2 on the original xbox.
Geometry Wars: Retro Evolved 2, just like its predecessor, is a 2D top down shooter, that is essentially a modernized version of Asteroids, without the warping and with dual stick controls added in. You move the ship with the left analog stick, and fire in the direction you point the right one in. Instead of flying saucers and asteroids, your ship shoots at enemies that take several different geometric shapes, are coloured differently, and behave in different ways. There are simple enemies like the blue diamonds that move towards your position in a non aggressive manner, or the purple pinwheels that spin about randomly, not attacking you but causing your demise if you inadvertently make contact with them. There are green squares that hone in on you, and cowardly move away once you turn to fire in their direction.