The Fairly OddParents (2001)

S2E23 Scary Godparents

Title: Frightening Fairy Godparents Plot: On what turns out to be his most dreadful Halloween, Timmy makes a wish that transforms everyone's costumes into terrifying realities. As the night unfolds, he finds himself surrounded by frightening creatures, leading to a chaotic adventure. Timmy must navigate through the mayhem and find a way to undo his wish before the night spirals completely out of control. With the help of his quirky fairy godparents, he learns the true meaning of Halloween and the importance of facing his fears.