Megaframe is the name given to Mainframe by Megabyte when he gained control of the system. When Hexadecimal overloaded the firewall and destroyed Silicon Tor, Megabyte took his remaining ABCs and attacked the Principal Office He easily defeated Mainframe's leaders and took control of the city, renaming it Megaframe. However, it was a hollow victory for the Core Control Chamber was badly damaged during this siege, the virals could only conquer a ruin. However, many of the Principal Office systems were still online, such as the portal generator inside the Sub-Sphere.