The Gamma Bros like to get into the Halloween spirit too!
Here are Buzz and Zap in some of their more elaborate costumes, and in their work clothes as well, for anyone that’s not familiar with the Gamma Bros. (our first epic space shooter & IGF Finalist!)
http://pixeljam.com/gammabros/
You can also read Anthony Burch’s insightful review of the game here from when he worked at Destructoid: http://www.destructoid.com/indie-nation-13-gamma-bros-79860.phtml
