Dexter and Dee Dee compete on a game show called Sibling Rivalry.
In the Spanish version, instead of saying "Gooey!," Trevor just laughs.
The existence of Dexter's secret laboratory seems to be revealed to the entire game show audience in this episode.
When they are in the "Question & Answer" round, Dexter is taller than the podium than before the "Q&A" round. When Dee Dee shows her answer at the Tiebreaker round, look closely. Her name is in lowercase letters, in contrast with the other shots where her name is in uppercase letters.
The flying pink pony resembles the Pony Puff Princess.
This episode aired in 1997, and was made in the same year according to the credits.