When Cheshire and Red Arrow land in the bell tower, Red Arrow's left hand is bare in one shot and then instantly covered in a glove in the next shot.
Robin: What's a meta-gene?
Beast Boy: Never met a gene I didn't like.
Red Arrow: I still don't buy it, Chesh. It's too easy. The good guys have been looking for the real Roy Harper for years. And suddenly you...
Cheshire: I go to places the good guys don't.
Robin: You're a tourist from the future?
Impulse: Why so surprised? Half the meat at Comic Con are from my era.
Robin: Is it possible he might actually be telling the truth? Could he really be from the future?
Beast Boy: Tell us something we don't know yet. When do I become leader of the team? When do I join the Justice League? When do I get my own reality series?
Flash: Stay put. I'll be back in a flash. (runs off)
Impulse: Heh. "Back in a flash." Wow. Does he say that often?
Everyone: (sighing) Too often.
Kid Flash: I didn't see that.
Impulse: You don't have the Allen family eyes.
Kid Flash: Don't make me hurt you.
Red Arrow: Should I be concerned over the obvious delight our daughter takes in the ultra violence?
Cheshire: It's genetic.
Red Arrow: Great.
Injoke: Impulse's line, "Oops, spoilers" is a joke by writer Peter David, referring to the newest Doctor Who TV series. Character River Song, who is from the Doctor's future, often uses the line when talking about the Doctor's future that he doesn't yet know about. Peter also included a Doctor Who in-joke in his previous episode, "Insecurity."
Injoke: The Flash's comment about a shelter at Fox & Gardner is a reference to Gardner Fox, the creator of the Flash.