I just got this game on the Nintendo DS and I’m hooked. I was about to buy the XBLA version of Geometry Wars : Retro Evolved but figured I’d rather have a portable version of it. It plays pretty exact to the XBLA version, and adds a new game as well called Geometry Wars : Galaxies.
Movement is done with the D-pad while firing and aiming is done with the stylus. Bombs are activated with the left or right shoulder buttons. This game adds a lot of new game play elements to the original came. Check out the video for game footage. This game is also available for the Nintendo Wii.