Josh Butterworth is probably better known to NeoGAF readers as Ghost, the author of XNA space shooter Last Alarm. The game got him noticed not just by the NeoGAF community but also by Microsoft, who invited him to take part in the XNA Challenge to create a game from scratch in four days at the Game Developers Conference.

Butterworth's creation is Final Stand, a "static-screen shooter" that he admits draws lots of inspiration from Geometry Wars, right down to the dual stick control scheme. Where Final Stand tweaks the formula is in its multiplayer mode, which will allow four people to work together to kill as many of the swarming yellow enemies as possible. The game is intended as a co-operative exercise, but Butterworth said he'll be leaving friendly fire on so "if you're losing in the scores and have two seconds left and have a missile in your pocket and you see your friend over there, you can feel free to shoot him." Think of it as Space War meets Geometry Wars.

Butterworth is impressed with what he's been able to get out of the XNA environment after only a few months of experience, but he isn't really trying to compete with his more experienced challengers. "It's not really a competition," he said. "It's about showing what's possible on XNA." Watch a video of the work-in-progress after the jump.