The shooter fired quickly, hardly flinching from the recoil of the M-4 rifle and consistently hitting the target -- a black silhouette in the desert.
Then Linda Descheneaux turned to her 8-year-old grandson.
"If Nana can do it, you can do it!"
The moment wasn't unusual for Otronicon, the Orlando Science Center's annual convention of everything video game-related. Visitors of all ages and ability levels have spent the past three days testing their mettle in games from Pac-Man to Halo 3 to military simulators, and, organizers say, learning about the art and science behind the games.