At a time when TRON seemed to be abandoned, TRON 2.0 picked up the torch and made for a delicious sequel that "got" what TRON was all about.

The music, alone, is fantastic, but the world they filled out with new ideas was wonderful as well. Damned good gameplay, too, of course.

Breaks my heart that it's no longer considered canon... but I do enjoy TRON Legacy as well. ;)