Visitor walking though the front door in the opening credits: Michael.
Michael's hair is brown & his sweatband is a plum purple color, but when he shows up at the door in the opening credits, his hair is black & his sweatband is a dark lavender purple.
When Penny arrives at the dance, Michael gives her a wrist corsage of pink flowers to wear. The corsage is on Penny's wrist while she is at the table with her friends, but when she starts looking for the monster the corsage has disappeared & a silver bangle bracelet is in its place.
When the gang finds the gross sisters in the closet, they're talking to them and the door is open. Then they're reading what's on the door and it's closed again. Then they are talking to the Gross Sisters again and it's open.
Penny: Daddy, do you know where a thesaurus is?
Oscar: No but I know where a dino-sarus is. We call it Suga Mamma. Haha!
Suga Mama: I heard that!
Zoey: What about the Gross Sisters?
(Dijonay closes the door on them)
Dijonay: Taken care of.
Penny: I say Tookie, you say wow! Tookie, wow! Tookie, wow!
This episode aired in Canada on January 27th, 2003.