A Return Command is a device used to send people or other data back to a pervious location. They are small devices that are known through out the Net. They are simple commands, found in most systems, including Mainframe.
During an attempt by Megabyte to trick Bob into turning a tear into a portal to the Super Computer, Bob brought two gold disks from the Super Computer to stop Megabyte with. The three devices made the tear, Bob, and Dot Matrix vanish. Megabyte thought they must have been return commands and that they were now back at Dot's Diner. He quickly rushed off with his troops to search the diner. It turned out that the gold disks were actually Hidden File Commands and that Bob, Dot, and the tear were simply invisible, still in the same spot. Megabyte never knew what happened. (The Tearing)