Goof: At the end of the episode, the group open the vortex on top of a moving train. One problem: it's behind the train--therefore it should be getting farther away. However, the vortex almost seems to follow the train, because it stays right behind the it.
Goof: During Quinn's flashbacks, there are some scenes from "Virtual Slide". Quinn couldn't have those memories in his mind as he never lived them, they were all part of Maggie's dream.
Nitpick: When "Maggie" removes the disc from her neural implant while standing in the alley, the implant starts to peel off of her neck too.
Trivia: Joanne and Rick use a lot of geek slang:
Naked: wearing no technology (also netless)
Tubed over: brought from another hermetically sealed Onliner community via the transfer tube
F2F: face to face
Ret-write: using the retina as a form of identity confirmation through the neural net
Onliner: someone who has neural access to technology and the net
Offliner: someone who has is not connected to the net
Digidise: merchandise that can be purchased digitally
Digicash: kind of like debit cards, but served through a digital medium
Digijob: of course, the digital version of jobs
Cracker: an offliner who has accessed the online neural net
Knowbot: an electronic helper that assists an onliner in finding pertinent information on the web
Trivia: Arnold Potts' eyewear, which he claims protects his eyes during transdimensional travel, are a reusal of a prop from "Virtual Slide".
Trivia: The coordinates of Quinn and Colin's home dimension are 405 134 101 118.
Goof: When Quinn and Rembrandt are reading where Colin and Maggie have been sent for reorientation, Rembrandt reads a file and says they've been sent to Elm Street. However, a shot of the street sign reads Elm Avenue.
Goof: In the beginning of the episode, Quinn takes the timer and it states they have 1 minute and 19 seconds before they have to open the vortex. Not long after that, Quinn asks how much time they still have and Rembrandt says they have 10 minutes.
A different house is used for the setting of "Quinn's house" in this episode.
Quinn and Maggie seek Rembrandt and Wade at the Chandler Hotel - but since they were back on their own world, it seems more likely that they would be back in their own homes.
Trivia: The Kromaggs seen in this episode and throughout the fourth and fifth season are significantly different from the Kromaggs seen in "Invasion". Their faces are less ape-like, and they now wear clothing resembling Nazi uniforms rather than the skintight black uniforms they wore in "Invasion". Their weaponry is also different. They now use larger rifle-type laser weapons, where in "Invasion" they used small handheld lasers.
Trivia: As of this episode, the vortex is now funnel-like. Also, the beam from the timer is now lightning-like instead of straight.