This version of Jet is a backup copy of the real Jet Bradley, who explored the digital universe in Tron 2.0.
Tron | Tron: Legacy | Tron: Uprising | TRON | TRON: Uprising | TRON: Legacy | TRON: Evolution | Tron: Evolution | Tron (franchise) | Tron (arcade game) | Tron 2.0 | Tron: Solar Sailer | ''Tron'' franchise | Shiva amplifier chains showing spatial filter tubes (white) and Nd:glass amplifier structures (short blue tubes closest to camera). Portions of the 1982 Disney film ''Tron | Genghis Tron | For a while, Monorail Coral featured ''TRON'' artwork from Disney's ''Tron: Legacy | Discs of TRON | Discs of Tron | Accu-''tron'' |
In some cases, the use is a direct analogy (for example, Dungeons & Dragons 3.5, where the rules were revised from the third edition, but not so much as to be considered the fourth), but more often it's used to play on an association with high technology and doesn't literally indicate a 'version' (e.g., Tron 2.0, a video game followup to the film Tron, or the television series The IT Crowd, which refers to the second season as Version 2.0).