TL;DR: Actually a pretty solid conversion of the PC game of the same name. I usually really don't like 3D-ish games based on isometric perspective, but it works mostly fine in this title. Might be because the colors really pop and contrast each other, unlike in something like Sonic 3D Blast or Lego Star Wars Advance.

You can upgrade Tron's - and the secondary original character's, Mercury's - unique abilities to survive different levels better, and even gain completely new abilities. There's some great music, some fun minigames sprinkled around and Bruce Boxleitner even returned to voice Tron, too, so the game was clearly made with care and is really fun.

Besides a few clunky enemy hitboxes and an oftentimes punishing life system, the only glaring issue is that the game is insanely short, and is padded out by having to replay through nearly identical levels as the second character you didn't pick at first (for example, if you started as Tron, you'll then have to play through very similar stages as Mercury, and vice versa). At least it's explained in a pretty interesting way story-wise, as the characters' missions are happening simultaneously and you have to make sure they each complete them.