Episode 18— Billy's Growth Spurt
Aired October 4, 2002
Synopsis
Billy's habit of eating too much junk food leads to him falling ill, so Grim makes a cure using his grandmother's recipe. Instead of healing him, the cure causes a small creature named Yap-yap to grow on Billy's back, who shares his fondness for junk food. After Yap-yap detaches from Billy and tries to avoid an antidote made by Mandy, he eventually ingests it and is destroyed.
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