Identity Disk

The Identity Disc is the weapon of choice of Tron. Identity Discs are standard weapons in the computer world, Space Paranoids. In fact, when a program hits another program, the disk will de-resolute (derezz) them, meaning they will be deleted from the database, pixel by pixel. In the movie Tron, Identity Discs are powerful, but some programs have to be downloaded to the disk in order to derezz certain programs.

The Identity Disc is an average weapon, like the Kingdom Key. Just as in the film, a program was installed into Tron's Identity Disc in the I/O Tower to help him neutralize the Heartless.

Design
The Identity Disc resembles a frisbee, and operates like one, as well. The color of the disk varies; it depends on the user wielding the disc. If a User program is wielding the disc, the color is blue. Otherwise, the disc will be a dark violet. Tron's Identity Disc is a mixture of dark and light blues. The disc sports a simple color scheme: the outer ring is dark blue while the following ring is light blue, with the pattern repeating towards the center of the disc.

Trivia

 * The Identity Disc is also the weapon of Sark, though his is colored red and orange to match his appearance.
 * The keychain of the Photon Debugger found in Kingdom Hearts II and Kingdom Hearts Re:Chain of Memories is a minuscule version of a blue Identity Disc.