Ssslumungousssaur is a fusion alien that appears on Earth-68. It is the fusion of Ssslither and Humungousaur.

General Information
Species 1/2 Ssserpent's Species

1/2 Vaxasaurian

Home World None
Body Dinosaur Snake
Powers and Abilities
Abilities Enhanced Agility
Enhanced Strength
Enhanced Durability
Size Alteration
Skin Shedding
Prehensile Tail
Sharp Spikes
First Appearance The Signers


Ssslumungousssaur's body is Ssslither’s in shape, with brown scales, being the same size as Humungousaur, having his muscular back and head. The skin on his head breaks, creating a secondary mouth on top of his head. His back has Humungousaur’s spine running down it, and his hands are Ssslither’s, being snake hands and the arms being proportionate to Ssslither. The Dueltrix symbol is on his chest.

When it grows to full size, he is as tall as Diagon in his true form, dwarfing even Ultimate Way Big. His body elongates with the size increase. His scales grow out on his back, splitting into two spikes going away from the spine. The second mouth on his head hardens and solidifies, though his arms don’t grow.

Powers and Abilities

Most of Ssslumungousssaur's abilities are from its size alteration ability, making it more of a threat than it is at its usual size. However, it can fight even without the size alteration.

Ssslumungousssaur has enhanced agility, able to slither across the ground swiftly to wrap around its opponents. Using the spikes on its back, it can cut through enemies, or dig into their skin to tear through them. He has enhanced strength and durability to match. He has a prehensile tail.

It can shed its skin, including the scales. Damaged scales can be shed and regrown instantly.

By closing its main mouth at full size, it can open its second mouth, and spit a powerful spray of acid.


After shedding its skin, it becomes vulnerable to attack.

Despite having arms and hands, their size doesn't grow with Ssslumungousssaur, making them virtually useless.

Its size makes it impossible to use in most situations, the slightest movement causing it to cause massive damage.

Its scales can be corroded by strong acids. Though it is a slow process, it continuously hurts him when it occurs.

Dimension 40 (Ya-Mi-Oh!)


  • Ssslumungousssaur's name is a combo of Ssslither and Humungousaur, with all the s's stressed like a snake.
    • This is a play off the trend with Ssserpent's name, which was used for Ssslither as well.
  • Ssslumungousssaur is based off the Yu-Gi-Oh! Egyptian god card Slifer the Sky Dragon.
Major Characters
Yami | White Dragon | Leo | Luna | Ishizu | Crow | Aster Phoenix | Skurd
Secondary Characters
Pegasus | Police (Detective Trudge, Axel, Sergent Mina, Commissioner Viper, Kaz) | Joey | Mahad | Axel | Mokuba | New Enforcers (Jack Atlas, Jim Cook, Tyranno Hassleberry, Seeker) | Team 4 D's (Blair, Syrus Truesdale, Sherry LeBlanc, Zane Truesdale, Valon) | Asgard (Dragan, Halldor, Duke Devlin, Adrian Gecko, Sartorius, Sarina, Devack, Andre)
Arcadia Movement (Sayer, Aki, Espa Roba, Weevil, Rex, Mako, Bastion, Tania, Mai, Mindy, Bruno, Thunder, T-Bone, Leon, Chris, Dimitri)
Main Enemies
Zorc the Dark One | Diagon | Senator Izayoi | Doma (Dartz, Rafael, Camulla, Kalin) | Noah Kaiba | Marik (Dark Marik) | Yliaster (Jakob, Primo, Lester) | Broder | Meklord Emperors (Skiel, Wisel, Granal) | The D | Yubel | Earthbound Immortals (Ccapac Apu, Aslla Piscu, Uru, Cissu, Wiraqocha Rasca, Chacu Challhua, Ccarayhua)) | Rex Goodwin
Secondary Enemies
Gozaburo Kaiba | Big Five (Gansley, Crump, Johnson, Nezbitt, Leichter) | Officer Trudge | Dr. Roman | Dr. Zigzag | Esoterica | PaniK | Enforcers | Odion | Nightshroud | Shadow Riders | Princeton Brothers (Chazz, Jagger, Slade) | D's Gang (Hunter Pace, Syd Barlow, Trapper, Greiger, Lawton, Nicholas, Hans, Hermann) | Asgard Criminals (Misty, Mad Dog, Mr. Shroud, Titan)
Yami's Aliens
Snare-ye-oh | 8tle | Swampmutt | Ghost Gadget | Rath Arms | Crashocker | Echojaws | Articdrillo | Lode-Stache | Buzzhead | Toemech | The Jetworst | Gold Chuck | Heatfreeze | Ultimate Gymosis | Malem Dust | Armoback | Humungoopsaur | Clockgrade | Dark Portal | Sonic Wisp | Heatdrillo | Dark Rath | Big Jones | Ditto Grade | Atomic-X | UpRigg | ClouAlien | Ghost Dust | Way Back | Nanohopper | Chill Rath | Amp-Eye | Stink Hazard | Spider Trout | Portadrillo | Wildrot | Worst Foo | Davy Back | Ssslumungousssaur | Chromatails | Diagonbolt | Elaskiblast | Gravadactyl | Dark Feed | Goop Chill | Terrafoo | Jury Shock | Franken Grade | Battle Rigg | Diamond Matter | Grey Rath | Clockwork Angel | Grafista | Will-o-Ditto | Toepire | Buzz Cream | Ghosttrack | Dark Stone | Hawk Charge | Dittoneir | Grand Goat | Big Chuck | Fourmungousaur | Rust Angel | Astro Dust | Desert Skull | Big Diagon | Dark Spider | Diamond Angel | Terragrade | Big Arm | Blox'n Lode | Chill Skull | Shock'Em
Nemetrix Aliens
Terroranchula | Magnutops | Chomper Ram | Slamworm | Basilisk | Thunder Log | Crabdozer | TKV | Hypnotick | Fell Wygic | Vicetopus | Seismic Constrictor | Buglizard | Mucilator | Iron Emperor | Muck Rock | Seer Digger | Diomedes | Tyrannopede | Panuncian
Dueltrix | Nemetrix
Dioga beta
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