Blue's Big Costume Party

Costume Limbo

Season 3, Episode 21 (61 overall)
Monday, October 16, 2000
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Boo's Haunted House
1. Little Prints
2. Whiskers
Wrong Answers
A Rhinoceros Costume
A Cat Costume
Right Answer
A Mouse Costume

Blue's Big Costume Party is the 21st episode of Blue's Clues from Season 3.

Characters Present


Steve and Blue host a Costume Party.


This plot summary is incomplete. You can help Blue's Clues Wiki by completing it.


  • This episode is a Halloween special.
  • The term Oogla Boogla was previously mentioned in the Mailtime segment back in the Season One episode Blue's Story Time.
  • Throughout this episode, Steve gets a spooky surprise whenever he opens his notebook.
  • In the Mailtime song, Blue does not join in the singing.
  • This is the last episode that Steve gives a wrong guess.
    • This is also the only time where Steve gives more than one wrong guess, and the only time when he observes each of the clues individually.
  • This is the third time Steve gets the mail at the end.
  • This is Boo's second and final appearance on the show.
  • The felt board picture shows Freddy and Fifi wearing their alien and astronaut costumes from "Magenta Comes Over".
  • This is the third time Blue was peeked into the leaves from "Blue's Big Mystery" and "Thankful".
  • This is the first Season 4 episode for As Pistas da Blue.


Watch Episode

Blue's Big Costume Party

Blue's Big Costume Party

Blue's Clues Season 3
Blue's Big Treasure Hunt | Art Appreciation | Weight and Balance | What's That Sound? | Animal Behavior! | Blue's Big Pajama Party | Draw Along with Blue | Hide and Seek | Thankful | Blue's Big Holiday | Pool Party | Anatomy | Signs | Nature | Geography | Occupations | Blue's Big Mystery | Periwinkle Misses His Friend | Blue's Big Musical | What's So Funny? | Blue's Big Costume Party | Inventions | Blue's Play | Prehistoric Blue | The Wrong Shirt | Words | Shy | Magenta Gets Glasses | Environments | Stormy Weather | Blue's Collection | Café Blue