Les trois cartes Aerobics Instructor, Bantam of the Opera et Santawar Elves, de l'édition Unglued 2 : The Obligatory Sequel, forment un cycle. Toutefois les cartes bleue et rouge de ce cycle, permettant d'arriver au nombre habituel et annoncé de cinq cartes, ne sont pas clairement identifiées.

Source (Aerobics Instructor - "This card is part of a five-card creature cycle. Each card had you roll a six-sided die and get a benefit based on the roll, but if you rolled a six, the card was sacrificed." - Bantam of the Opera - "You can see that this card is in the same creature cycle as Aerobics Instructor.")