Freddy vs Ghostbusters (2004)
One guy is watching TV. You can see a "to be continued"-"sign" - and hear the "dukes of hazzard"-titletheme.
Jason appears in the movie
One of the Denver Ghostbusters Uncle was in the Ghostbuster of New York
Freddy is in the film and he says at one point "Hey Nancy Your Boyfriend is dead" which he said in the original film
In Neil's last nightmare, a ghost says to him "I'll swallow your soul!"
Logo appears on Neil's t-shirt.
The bubble gum line is quoted.
One guy is playing the old NES-game [you don't see the screen]
One character refers to another as Fox Mulder, the lead character from the X-Files
Freddy Krueger's iconic sweater and glove hang next to the containment unit
In the firehouse, upstairs near the computer, is a children's drawing of a ghostbuster that says, "To Uncle Egon, From Ed". Ed Spengler, from the fan films Freddy Vs. Ghostbusters and Return Of The Ghostbusters, is the nephew of Egon. When the game is set to take place (1991), Ed would have been just a child. (PC/PS3/X360 version only)
One of the characters is watching Empire Strikes Back right before Freddy kills him in his sleep.
character plays the game
dialogue "Mr. Anderson, welcome back." "My name is Neil" (read: Neo)
The Scene after the credits