7 Sezon
184 Episod
Sumbrele aventuri ale lui Billy și Mandy - Season 1 Episode 18 Protuberanța lui Billy
Billy eats too much junk food that makes him feel sick. Grim prepares him a remedy using his granny's recipe, but this medicine makes a parasite to start growing in Billy's back, which Billy names Yap-yap. In the following, Billy and Yap-yap continue eating junk food, so Mandy suggest to use the antidote to the original remedy. Eventually, Yap-yap, now looking like a smaller version of Billy, detaches himself from Billy (which would have technically cured Billy without the need of him drinking the anitdote), and tries to escape from the antidote. In the end, Yap-yap drinks the antidote and is destroyed.
- An: 2007
- Țară: United States of America
- Gen: Animation, Comedy, Kids
- Studio: Cartoon Network
- Cuvânt cheie: grim reaper, spin off
- Director: Maxwell Atoms
- Distribuție: Greg Eagles, Richard Steven Horvitz, Grey DeLisle, Vanessa Marshall