Rebel Planet

The hero's mission is an urgent now-or-never attempt to liberate the human race by exploiting the one weakness of a pack of aliens nazis you'll love to hate. The Arcadians are controlled by a single computer on their home planet Arcadion, they're all mind-linked to it by cerebral-receivers. It directs them like an ant colony queen and if it's destroyed - so is the brain of every single solider in the galaxy. The empire will be instantly reduced to a bunch of zombies wandering around, bumping into walls and apologising. People will rejoice!