Evan G Guerilla Warfare was a possible unreleased game. snes_central@yahoo.ca June 18, 2014 1|As of right now, the only reference to a game titled "Guerilla Warfare" is from a Chips & Bits advertisement from the May 1992 issue of Gamepro. I have no idea if it was related to the similarly titled NES game "Guerilla War", or if it was released under a different title. It was listed under the genre "shooter". I also don't have a developer or publisher attached to this title, so it will likely remain a mystery. 14|chips_and_bits.jpg|Listing in a May 1992 Chips & Bits advertisement. Scan courtesy of Retromags.