Destroy All Humans

You are constantly in contact with your mothership, where you can purchase upgrades, save the game, and apply for new missions. Crypto doesn't have to run all the time; he can also use his flying saucer to abduct humans or animals, cause havoc, or face bigger threats. Next to the story-based missions, you'll also be instructed to collect specific samples or kill a certain amount of humans in a race against time.