Fisher-Price Imaginext Ion Alien Headquarters Move the eyeball scanner up and down to "scan" figures and detect if they are human or alien Turn the bottom disk to open the front door and let figures inside Turn the disk near the lookout tower to move the tentacles back and forth to scare away intruders Press the lever in back to activate a snapping tentacle that can knock over figures trying to enter Ion Alien Headquarters Move the launcher to many locations throughout the play set, including any of the tentacle arms and fire a projectile!