Rinzler is Clu 2's primary enforcer. He is an exceptionally skilled warrior and is the elite combatant in all games in the Grid. He has the ability to use two Light Discs in battle.

Rinzler first appears as the final opponent of the Disc Wars, where he identifies Sam as a user after seeing him bleed and brings him to Clu. Later, he is summoned when Quorra interrupts the Lightcycle duel, but is unable to prevent her from rescuing Sam. Despite the setback, he continues to assist Clu 2, acting as a personal enforcer and right-hand man.

Quorra later distracts Rinzler by allowing herself to be captured so that Kevin and Sam can reclaim Kevin's Identity Disc and reach the portal back to the real world. As Sam attempts to retrieve the disc, Rinzler appears, and the two briefly engage in a disc fight that sees Rinzler knocked over a nearby ledge. He recovers and pursues the three heroes in his Light Jet along with Clu and the Black Guards. In the ensuing fight, he and Kevin Flynn manage to make eye contact, and Kevin refers to him as "Tron" and asks what he has become. Shortly thereafter, Rinzler begins to experience flashbacks to when he had once saved Kevin, and is able to overcome his reprogramming, stating Tron's iconic line, ("I fight for the Users").

Now free, he deliberately crashes his Light Jet into Clu's, derezzing both jets and allowing the three heroes to escape. Clu and Rinzler briefly scuffle as they fall, but Clu succeeds in stealing Rinzler's baton, allowing him to create a new Light Jet and leaving Rinzler to plummet into the Sea of Simulation below.

As he sinks into the ocean, his circuitry flickers and eventually reverts from orange to white as his systems reboot.


Features
Rinzler has a jet-black helmet and red-orange circuitry similar to the Black Guards, although these splashes of color are far more limited on Rinzler than on other programs. Four squares make a 'T' shape on his chest, hinting his true previous identity of Tron. His Identity Disc is a fusion of two discs that separate to form a matched pair when he needs to fight, a second disc having been acquired in 1989, prior to his corruption. Rinzler often communicates his aggression in an electronically distorted growl, but otherwise has little use for voice communication.

Trivia
The t-shaped series of dots on Rinzler's chest near the collar of his suit match the ones on Tron in TRON.
Rinzler is portrayed by Anis Cheurfa and is voiced by Bruce Boxleitner in TRON: Legacy.