People Can Fly, Epic Games and Electronic Arts, the companies behind the upcoming Bulletstorm first person shooter, have thought of a novel way of promoting the title, and released a free game, called Duty Calls, which parodies modern combat shooters, with Call of Duty receiving the biggest amount of cheeky insults. Bulletstorm has been touted as a game changer in terms of first-person shooters, as the title wants to put an emphasis on having fun while gaming and killing the legions of enemies through a variety of imaginative ways. Now, after plenty of videos that made fun of current shooters and games, which aren't very entertaining, the three companies are taking things up a few levels by releasing a parody of Call of Duty, entitled, what else, Duty Calls. The game is a free download, weighing in at 762 MB, but only lasts about five minutes. Still, in that time, you'll be able to encounter every first-person shooter troop imaginable, from invading an Eastern European secret base, to finding out that there's a nuclear bomb in that facility and then saving the rest of the world through slow-motion plot points. The briefing players receive is also focused on just the important stuff, as gamers hear the voice of a scruffy general saying, "Here's your objective: blah blah blah... secret base. Blah blah blah... nuclear missle bomb. Blah blah blah... counting on you. Good luck." Epic Games lead designer Cliff Bleszinski already endorsed it through his Twitter account, saying that, "Wow. Blown away. This game will redefine military shooters for years to come." EA and Epic are hoping to avoid any lawsuits from Activision, as the website clearly states that "Duty Calls is a parody. It is not associated with Activision or the Call of Duty games." Despite this warning, the game uses the same font and various other graphical resources seen in the marketing of previous Call of Duty games like the most recent Black Ops or the Modern Warfare titles. Duty Calls is available as a free download right here from Softpedia and these are the recommended system requirements. OS: Windows XP SP2+, Windows Vista or Windows 7 Processor: 2.0+ GHZ Single Core Processor Memory: 512 MB RAM Graphics: NVIDIA 6200+ or ATI Radeon 9600+ Video Card Sound: Windows Supported Sound Card DirectX: DirectX 9.0c Hard Disk Space: 8GB (Download: 759MB)