Tron: Evolution, the game, takes place during the 1990s, halfway between the original film and the new "Tron: Legacy" flick, in theaters now. You control Anon, a security program who appears as a humanoid avatar; Anon's job is to prevent a virus called Abraxas from destroying the cyberworld.
The action boils down to three elements. Least satisfying is the combat against Abraxas' minions, who pop up and attack Anon at regular intervals. Your only weapon is a glowing disc, which you can fling from a distance or use in up-close attacks. You earn more powerful discs, such as the one that explodes, as the game proceeds, but most of the fights devolve into simple button-mashing.
Then there's the parkour-style exploration, which has you running up walls and leaping across chasms as you make your way across Tron's virtual cities.
Finally, you get to race the iconic light cycles. The single-player campaign has just a few driving sequences, and they feel a bit undercooked. You barrel down a track, moving left and right to avoid obstacles and other bikers, but you don't get the speed rush you'd hope for.
It's perhaps appropriate that the world of Tron, a virtual space presented in a video game, never feels real. The surfaces are too slippery, the vehicles have no traction, and the architecture seems arbitrary.
RATING T for Teen
PLOT You fight a cyber virus.
DETAILS Xbox 360, PlayStation 3, $60; PC, $40
BOTTOM LINE Suffers a power shortage