Atari officially announces Ghostbusters: Sanctum of Slime, the recently revealed sequel to Ghostbusters: The Video Game. The game will offer four-player co-op gameplay when it is released via digital distribution in Spring 2011 for Windows, Xbox 360, and PlayStation 3. Word is: "The action-packed gameplay progresses as players complete jobs as fearless rookies who explore a series of haunted environments that must be cleared of any ectoplasmic threats. The gripping adventure rages on as players encounter gigantic bosses that require a concentrated effort to defeat using a medley of highly destructive weapons including the Proton Stream, Plasma Inductor, and the Fermion Shock. Rookie Ghostbusters will face the dangers of the eerie world alone or with a ghostbusting team of friends both locally or online through the game’s multiplayer capability." The game's website is accepting newsletter signups, this trailer shows off frenetic gameplay with some stream-crossing and a bit of vehicular mayhem, and here are a batch of screenshots. The embedded version of the clip follows.