System Sectors (システム部門 System Sectors?) are locations unique to Kingdom Hearts Re:coded, replacing the Debug Areas that appeared in Kingdom Hearts coded. They can be accessed through Backdoors, and are found in every world. A System Sector can have several different floors. Once one floor is cleared, a transport appears, allowing Data-Sora to move up a floor. Eventually, a terminal will open, allowing Data-Sora to leave the Sector altogether.