Happy Huggy Stuffy Bears / The Secret Decoder Ring.Happy Huggy Stuffy Bears: After a trip to the mall, Mandy becomes the spokesperson for Happy Huggy Stuffy Bears, a new stuffed toy in town. After the success of her commercial, Mandy gives away stuffed bears, which were her payment from the commercial, to the other children in the neighborhood, who start wreaking havoc in the city. Eris, the goddess of chaos, is behind the toys, which mind-control the children into creating chaos. Mandy decides not to share control of the world with Eris, and orders Grim to destroy the toys, which he does.
The Secret Decoder Ring: When Billy finally gets a "secret decoder ring" in his Blasto Bits cereal, he receives a holographic message from a strange feminine creature who speaks about finding the "Secret of the Universe" in an abandoned mine shaft. All the other children of Endsville, also with decoder rings, race to the mine to be the first one to get the Secret. The entire effort is revealed to be a trap laid by Lubbermouth, a female worm-like creature from Grim's past who has a major crush on Grim, who wishes to free herself from the curse of guarding the Secret. When Mindy looks down at the pit, Lubbermouth pushes Mindy into the pit and she becomes the new guardian of the Secret and has to stay there forever.