>>9472621So you didn't watch the movie I take it? He's there throughout the entire film. From the very beginning when we see how he died. He plays chess with Phoebe, guides her through the house, helps her fix his Proton Pack, leads her to the ghost trap, helps fix the Ecto-1, shows the mother he always kept an eye on her life. He's also the main driving point of the events that are unfolding from both the new and old characters. To call his presence simply nostalgia bait is absolutely retarded.