Grade: B- (83.07)
The object of Stargate (later released as Defender II) is to shoot the bad guys and rescue the people being snatched. It's quite simply a newer and better version of Defender. This one utilizes 2 joysticks, so that you can leave the smartbombing to your other hand or a friend. Other new features include stargates, which teleport you to a person being kidnapped, and the ability to become invisible for a few seconds.
Images from www.atariage.com (used by permission)
Descriptions from www.atariguide.com (used by permission)