A bunch of Episode 10 examples that came to my head when there were 9 episodes.
- "A Wondrous Change in the World", (thanks to Cubey), where Platform 9 3/4 is entered and they make their way to the top of a pole.
- Revisiting the Tournament Bracket - written here!
- "Goldfinger Cooking", where Hot Dog has a fever from eating brussell sprouts from a bin saying "PLEASE DON'T EAT THESE", then gets brussell sprout fever, and the challenge is to fix eggplant soup for him, and they do it in a James-Bond-esque way. (Frankly, I'm not sure I understand Goldfinger.)
- "Amphibian Scavenger", where everyone rides boats on the water (except Boat who uses herself) and hunts for lilypads and other things related to amphibians...
- "Forest Speedrun" (thanks to a Sonic channel for the text!) where the challenge is to race to the finish; but you get revenge lemons for answering questions correctly, and you can throw them at other members to push them back from the finish. (The one in my fan picture)
- "Love Stories", a Valentine's Day special for February...
The official episode is here.
The same is true for Episode 11 examples, when there were 10 episodes (a period longer than a year).