Season 6

Billy & Mandy: Wrath of the Spider Queen

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69 :06x03 - Hurter Monkey/Goodbling and the Hip-Hop-Opotamus

Hurter Monkey: Billy and Mandy want a monkey butler named Dickie Galoot from a T.V. show. Grim zaps the T.V. with his scythe to prove that Dickie can't do better at chores than Grim, but proves him wrong. Grim wants to leave, however he cannot or else he'll go to the Underworld Jail. He tries to get rid of Dickie in cleaning contest. Who will win?
Goodbling and the Hip-Hop-Opotamus: Principal Goodvibes turns into a hip-hop rapper by a blast from Grim's scythe.

70 :06x04 - Spidermandy/Be A-Fred, Be Very A-Fred

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Guest Stars: C.H. Greenblatt as Fred Fredburger | C.H. Greenblatt as Fred Fredburger
Director: Sue Perrotto

71 :06x05 - The Crass Unicorn/Billy and Mandy Begins

The Crass Unicorn: Billy wants to go to a magical place where everything is positive, so Grim takes him to the Enchanted Forest. Most things are peaceful except a rude unicorn named Mary Frances. Billy tries to change her.
Billy and Mandy Begins: Irwin asks Billy, Mandy, and Grim how they met.
Guest Stars: Steve Blum as Cereal | Grey Griffin as Unicorn Mom | Steve Blum as Cereal

72 :06x06 - The Secret Snake Club vs. P.E/King Tooten Pooten

The Secret Snake Club vs. P.E.: Several of the kids in school, including Billy and Erwin want to get out of P.E., and so they enlist the help of the Secret Snake Club.

King Tooten Pooten: Irwin learns about his heritage, and he was related to a pharoah named "King Tooten Pooten". Then King Tooten Pooten comes back in the night, to try and convince Erwin to be king. Will he succeed?

73 :06x07 - Billy Gets an "A"/Yeti or Not, Here I Come

The unthinkable happens, and Grim and Mandy must clean it up; Grim discovers that he forgot to reap the abominable snowman.

74 :06x08 - Nergal's Pizza/Hey, Water You Doing?

A shape-shifting monster loves pizza; a lovesick mermaid falls in love with an idiot.

75 :06x09 - Company Halt/Anger Mismanagement

General Skarr is lured back to the dark side; Mandy, Grim and Skarr get help to control their tempers.
Guest Stars: Armin Shimerman as Mr. Skarr

80 :06x14 - Nigel Planter and the Order of the Peanuts

Billy, Mandy and Grim must preserve Earth's dairy stock after they are kidnapped by aliens obsessed with cheese.