This episode marks the debut of the Knock-Knock Door , an anthropomorphic door that only opens for those who tell it a joke.
It is the last episode where Muhammad Cunningham provides the voice for Tico the Squirrel ; Jose Zelaya took over the role in Season 2. This episode marks the debut of the Knock-Knock
In certain scenes, Dora's voice sounds like her Season 2 voice, suggesting it may have been one of the last episodes produced for the season. This episode marks the debut of the Knock-Knock
To reach the mountain, they must cross the Troll Bridge and pass through the Knock-Knock Door . This episode marks the debut of the Knock-Knock
Dora and Boots travel to Tall Mountain to compete in a contest for the "Silliest Riddle of All".