Game Description:Aliens are attacking and as part of the Earth Defense Force, you're the last line of defense. No pressure, right? Rally to save the only planet we've got in this action-packed arcade-style shooter available exclusively on the Xbox 360. You'll face swarms of enemies that include giant ants, spiders, and robots- at over 20 stories tall, these creatures will overwhelm your screen. Arm yourself with 170 variations of seven high-powered weapons including assault rifles, rocket launchers, and more. You'll get help from your AI EDF team on 50 missions that take you through cities, to the shore, and underground. Team with a friend in co-op play when the battling gets too intense and help each other fight off the madness and save the world!