Arcades redefined for console generation redefined

Chris Powell ducked down an alleyway, weapons at the ready, grinning while he laid in wait for his younger brother, Chad.

Chad zipped down the main drag, dressed in blue armor and riding a large flying scooter, intent on the cache of weapons and ammunition ahead of him.

"I told you you're not going to get it," Chris said, tapping a button on his Xbox 360 controller that lobbed a grenade at his younger sibling who died in a fiery explosion on the big-screen television.

Competing with a dozen other players online, Chris, 22, and Chad, 15, of Edgewater, engaged in good-natured pixilated fratricide Tuesday evening playing...