The Grim Adventures of Billy and Mandy

Season 7 Episode 9

Billy & Mandy Moon the Moon

Aired Friday 8:30 PM May 28, 2007 on Cartoon Network
out of 10
User Rating
19 votes

By Users

Episode Summary

Billy & Mandy Moon the Moon
Billy, Mandy and Grim are abducted by cheese-obsessed aliens from the moon.

Who was the Episode MVP ?

  • The last part of the Invasion mini-series.

    After Bloo tries to save the world from his belief of Cheese being in-tie with the aliens, the aliens land in the cul-de sac-of Ed, Edd, and Eddy. From there a alien invades Charles Darwin middle school, home off Jake and Adam. On a quest for cheese 3 more aliens try to get cheese from Prickly pines and meets up with the bean scouts, now, in there last installment, the final invasion on Endsville with was epic. My favorite part was when Spergs brain blows up :)

    I loved the alternate ending, and the original ending was funny too. This was a great show, and I hope that Maxwell Adams comes up with another great hit.moreless
  • Really lame.

    This is the last episode to the Invaded CN, but it was a little letdown

    Billy and Mandy Moon the Moon: There wasn't much of a plot for this invaded cartoon. Billy and co.(that included Sperg) visited the aliens' base for nothin'! What happened during the visit was that the aliens became werewolfs! What does that have to do with aliens?! Exactly, how did Billy become a werewolf? For what mattered, Grim, Mandy, and Billy became ridiculous type of heroes, and it was to stop the evil alien rein or something like that. The good part of this episode was that Sperg's head exploded. This episode didn't make sense.

    Episode Grade: D-moreless
  • A very Great Episode.

    Why? Why,Must the series end like this? All that's left is Wrath of the Spider Queen, and I don't know what's after that! I really like how the aliens sucked the brains out of the following characters: Cheese, Ed, Slips, and Chip. Fred Fred Burger was sort of the outlier of the group. It should've been Mindy, or Billy, or Billy's Dad or Cat. What was the cat's name again? M i l k s h a k e s? That was wierd. Oh, well. Now, if you shall kindly excuse me, I must continue my spy work for my alien masters. That was a joke.moreless
  • The "Invaded" mini-series gets all wrapped up! 8)

    Whoo! :D What else can I say? If "The Grim Adventures of Billy & Mandy" must end, let it end like this! With action, action, & More action! Billy takes a stand & fights for what's right, Grim has to come up with the plan, Mandy is the sane, rationalized glue that holds it all together, & Sperg makes a surprising sacrifice! The best part of all was the end credits when it was revealed how all of the episodes were created & the hidden alien agents among the regular crew members! I never would've guessed Plank or Pud'n as hidden alien agents, & of course Ricky Platypus & Freddie the Walrus got found out! Best part of all was when the aliens tried to suck some character's brains out, but they turned out to be the Stupid characters brains & they ended up becoming stupid! What a series finale (if it is the finale!) Amazing, marvelous, great, magnificent, colossal, phenomenal! And it's good to! That's why I wrote this review! Enough said, true believers! ;)moreless
Richard Horvitz

Richard Horvitz

Big Grabby

Guest Star

Vanessa Marshall

Vanessa Marshall


Guest Star

Dee Bradley Baker

Dee Bradley Baker

Alien, Moonbeast, Alien Werewolf, Moonthing

Guest Star

Greg Eagles

Greg Eagles


Recurring Role

Grey DeLisle

Grey DeLisle


Recurring Role

Jennifer Hale

Jennifer Hale


Recurring Role

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Trivia, Notes, Quotes and Allusions


  • TRIVIA (3)

    • The alternate ending to the Invaded series appears to be animated in the Billy and Mandy style, though Grim, Mandy, and Billy do not make an appearance. The five main characters from the Kids Next Door are featured instead.

    • This episode is connected with other Invasion episodes from different Cartoon Network series.

    • Mandy's hair changes color from light to dark yellow throughout this episode.

  • QUOTES (3)

    • Billy: (to alien) I'll call you Baby Steve.
      (Alien roars in Billy's face)
      Billy: Okay... How 'bout Cuddlekins?
      Alien: (looks at the audience) This kid ain't playin' with a full deck, folks.

    • Sperg: Besides, aliens don't make crop circles, they fly in UFOs.
      Billy: Like that one?
      (Alien spaceship appears overhead. A hatch opens and glows green)
      Sperg: Yeah, green is aliens' favorite color.

    • Grim: Um.. Mandy... are you... scared?
      Mandy: Yeah, we're about to be eaten alive..
      (monsters come closer)
      Mandy: Well Grim... it's been swell...
      Grim: Really?
      Mandy: No.

  • NOTES (12)


    • Grim: By the power of the Underworld... I have the power!

      This is similar to He-Man's phrase to activate his sword to change from Adam to He-Man, "By the power of Grayskull... I have the power!"

    • Some of the UFOs look like the spaceship that captured the Cul-De-Sac kids at the end of the episode The Eds are Coming also in other Invaded episodes.

    • Some characters from Foster's Home for Imaginary Friends, Camp Lazlo, My Gym Partner's a Monkey, and Ed, Edd n' Eddy make a cameo in the ending which seems to have a connection to the whole episodes.