FEATURES
Up, up, down, down, left, right, left, right, b, a, b, a, start.It was an afternoon of alien slaughtering with a friend when you first figured out that cheat code.And people still are blowing aliens away or climbing construction sites to stop an oversized gorilla with a penchant for blondes with their Nintendo Entertainment System games, or just firing up the long-forgotten Sega Genesis for a hot game of "Battletoads."It's a resurgence in the retro gaming field, and some companies are capitalizing on the boom."We certainly recognize certain nostalgia values," said Nintendo spokes woman Beth Llewelyn.