All Aboard the Steamtrunk (Trivia)

A trivia of Season 13, All Aboard the Steamtrunk.

Trivia

 * This episode marks the debut of the Steamtrunk.
 * Doctor Undergear and Heinz Doofenshmirtz are revealed to be rivals at the EIC (abbreviation of Evil Inventors’ Contest).
 * Romeo’s golden cog pendant is revealed to be Doofenshmirtz’s key to finish his Sneezeinator.
 * Romeo is kidnapped for the second time.
 * The first was in the PJ Masks episode “Catboy and Gekko’s Robot Rampage”.