Paranormal payouts await.Peter, Ray, Winston and Egon are back! Ghostly ghouls are running rampant on spinning reels and awarding big bonuses in the exciting 3D world of Ghostbusters™ Who Ya Gonna Call? Slots. Traditional 7 symbols are now covered in slime while a ghost trap awards random wilds and multipliers in both the base game and Firehouse Free Games bonus.At the start of the bonus rounds, Slimer spins the wheel to give players a try at six hauntingly interactive bonus events: Bag ‘em & Tag ‘em, Firehouse Free Games and four character-themed progressives where players match any two icons to win a jackpot. Innovative content combined with flashy, ghoulish graphics brings the Ghostbusters™ brand to life.
Source: http://www.igt.com/us-en/games/game-page.aspx?type_id=8540
Also: http://protoncharging.com/2012/03/28/igt-to-release-second-ghostbusters-slot-machine/
and http://www.gbfans.com/community/viewtopic.php?t=29547