Happy Huggy Stuffy Bears/Secret Decoder Ring

Plot:

In "Happy Huggy Stuffy Bears", Billy, Mandy and Grim all meet a suspicious woman named Serisue, who gives Mandy a paying job as spokesperson for the Happy Huggy Stuffy Bears, and soon, abnormal things happen. In "The Secret Decoder Ring", Billy finds a decoder ring in his cereal box which he tries to use to find the secret of the universe. However, he is not the only one trying to do it like this.