Battle of the Humungonauts is the ninth episode of the first season of Scooby-Doo! Mystery Incorporated.


Two giant monsters named Humungonauts, attack Crystal Cove, causing the gang to spring into action--outfitted with team uniforms made by Fred, much to the disgust of the others.


Sheriff Stone and Mayor Jones are relaxing in the Tiki Tub restaurant, listening to Trini Lee's new song, "The Words Stuck in My Throat". As the song ends, a giant green monster shows up and wrecks the entire restaurant. Once the creature leaves, Sheriff Stone, believing it to be staged, asks for an encore.

At Shaggy's house, Scooby looks for Shaggy in the garden, only to find him kissing Velma. He demands for an explanation, so Shaggy nervously tries to clear up the misunderstanding, but Scooby only gets heartbroken and Velma annoyed.

In the Mystery Machine, the gang arrive at the restaurant wreckage. They ask Sheriff Stone about the creature that attacked the restaurant, whom he has dubbed as a Humungonaut. Suddenly, a red one demolishes another building and runs off.

At K-Ghoul, Angel sees that the gang's moping about because of Shaggy and Velma's relationship problems and they haven't got much to go on, but Fred gets idea.

At Fred's house, Sheriff Stone shows up having been told that it was a barbecue to get him over. After some bad advice, Velma and Scooby started forcing Shaggy to choose who he'd rather be with, but Fred breaks up the fight and announces that he wants to call their gang "Mystery Incorporated" in honor of those before them and hands out uniforms.

They go back to the wreckage and see that an insurance company is cleaning up the rubble and the contractor Rusty Gnales is rather pleased, thinking about making the Humungonauts his partners, giving the gang their first suspect. That night, they sneak inside his construction site and split-up to find more clues.

Shaggy and Scooby have a hard time working with each other not making eye contact with each other, when the green humungonaut attacks and goes on another rampage. Rusty witnessed the carnage and the Humungonaut drops a crane onto a tank of propane causing an explosion which they barely escape.

On the road, they become disheartened on how the investigation didn't go well. On the radio, they hear a commercial on Max Minner's insurance company, then Mr. E contacts them through the radio and gives them a riddle telling them to look at the signs that are all around them, listen to add knowledge and to open their minds to 'insure' a speedy solution and hangs up, leaving them confused.

The next day, they ask Mayor Jones to do something about the Humungonaut. He and Sheriff Stone show them a plan to catch them and get Crystal Cove Stadium, but haven't worked out all the details. Fred gets hurt on how they're building a trap without them, or specifically him, and as they leave, Mayor Jones comments on how their uniforms look ridiculous.

At the stadium, the police force use whatever they have to catch the beasts. While in the stands, Velma finds a pattern on her laptop that the beasts are only attacking certain buildings, but don't know what they have in common. When Shaggy says that it's hard like Mr. E's riddle, Velma realizes what he was talking about and leave knowing where the next attack will happen.

They set up a trap in the old, abandoned boat repair shop. In no time, both monsters show up, forcing the gang to hide. The beasts start fighting each other and after getting in the water, Fred activates a net that catches both of them. Mayor Jones and Sheriff Stone arrive and Velma unmasks both of them as Max and Jax Minner, owners of their own insurance companies. Velma lured them here by double-insuring the boat repair shop with a policy from both brothers, each brother attacked places the other brother insured and vice versa. The brothers confess that they did it for money and that they can't stand each other. Their rivalry started back when they were circus strongmen and came up with an idea for their act, the Hercules Apes, when one of them broke up their act to join a rival circus. Since then they became bitter enemies and by chance, went to the insurance business in Crystal Cove and resumed destroying each other's business. As they are taken away, they curse each other in unison and start fighting again with the police trying to break them up.

Daphne proudly points out that they're starting to work like a team again. However, they discard their uniforms (much to Fred's disappointment) since the new name is enough. With one problem to deal with, Velma and Scooby once again force Shaggy to choose, but he screams that there's a blue Humungonaut and runs off, annoying Velma and Scooby.


Main characters:

Supporting characters:


  • Green Humungonaut (only appearance)(no lines)(main story and flashback)(Max Minner's disguise)
  • Red Humungonaut (only appearance)(no lines)(main story and flashback)(Jax Minner's disguise)
  • Max Minner (only appearance)(main story and flashback)
  • Jax Minner (only appearance)(main story and flashback)

Other characters:



  • Harry the puppet
  • Daphne's camera



Suspect Motive/reason
Rusty Gnales To profit from reconstruction contracts.


Culprit Motive/reason
Max Minner as the Green Humungonaut To ruin his brother's rival business.
Jax Minner as the Red Humungonaut To ruin his brother's rival business.


Frank Welker Scooby-Doo
Fred Jones, Jr.
Green Humungonaut
Matthew Lillard Shaggy Rogers
Grey DeLisle Daphne Blake
Mindy Cohn Velma Dinkley
Patrick Warburton Sheriff Bronson Stone
Gary Cole Mayor Fred Jones, Sr.
Rusty Gnales
Vivica A. Fox Angel Dynamite
Tom Kenny Max Minner
Jax Minner
Troy Baker Commercial announcer
Red Humungonaut
Fran Southworth Trini Lee


Song Credits Performed by Character performance by
"The Words Get Stuck in My Throat" Written by H.B. Barnum
Produced Joey Levine
Fran Southworth Trini Lee



Cultural references

  • This episode is a tribute to the classic Toho movie War of the Gargantuas (or as it is known in Japanese Sanda tai Gaira), which also features two large monsters whom wreak havoc, along with a version of "The Words Get Stuck In My Throat".
  • The Green and Red Humungonauts by their appearances and their fighting sequences almost resembles the Marvel comics characters the green Hulk and Red Hulk, respectively.
  • Shaggy's bedroom is revealed to be nearly identical to Greg Brady's attic bedroom from the classic television series, The Brady Bunch, complete with a beaded curtain, sink and partial wall headboard. The Brady Bunch originally premiered only thirteen days after Scooby-Doo, Where Are You!.
  • When the Humunganauts fought at the boat repair shop, a wall fell down with the Gang left standing in a cutout. This is a homage to Buster Keaton's famous silent screen stunt in Steamboat Bill Jr.

Animation mistakes and/or technical glitches

  • When Fred is assessing the traps in the arena, Daphne places a hand on him. Moments later Daphne visibly takes her hand off of Fred but her fingers still appear on Fred.

Inconsistencies/continuity errors and/or goofs/oddities

  • Despite Angel calling the song "The Words Get Stuck In My Throat" (a reference to the song used in the film), it's credited as "Stuck In My Throat".

In other languages

Languages Name Meaning
Spanish La Batalla de los Humungonautas The Battle of the Humungonauts
Italy La Battaglia Dei Gigantonauti
French La Bataille des Humongonautes
Hungarian Humungalamuták csatája
Portuguese A Batalha dos Humongonautas

Η Μάχη των Χουμονγκοναυτών (Star TV Dub)

Η Μάχη των Γιγαντοναυτών (Boomerang TV Dub)

Polish Bitwa Gigantonautów

Home media


Scooby: Gave him the best years of my life.

Daphne: For instance, every time mother starts sleeping in the backyard treehouse , we hire a doctor, or somebody else in authority, to help us work things out. Then we lock her away for a few months.

Sheriff Bronson Stone: It took three clips and a flamethrower to bring 'er down. But let me tell ya, old Miss Percy's cat never went in that tree again.

Velma: It appears we have our suspect.
Rusty Gnales: Uh, I'm still here, you know.
Daphne: Oh! Sorry.

Mayor Jones: You kids going to a costume Party?
Mystery Inc: (In unison) No.
Mayor Jones: That's too bad because you all look ridiculous.

Max Minner: And it would have worked, too, if it weren't for--.
Max and Jax Minner: --My meddling brother!
Max and Jax: What? Why you!

External links

  • TBA

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The Grasp of the Gnome Scooby-Doo! Mystery Incorporated
Season 1
Howl of the Fright Hound