Turtles of Grayskull is a crossover action figure line that merges Masters of the Universe and Teenage Mutant Ninja Turtles into a unified fantasy-sci-fi world. Instead of simple mashups, the line reimagines Eternia through mutation energy and interdimensional conflict, creating redesigned characters that feel true to both brands while standing apart as entirely new interpretations.
The figures use a MOTU Origins–style foundation—bold proportions, fantasy armor, and retro sculpting—enhanced with mutant textures, corrupted details, and TMNT-inspired weapons. The Turtles become armored Eternian warriors, Skeletor gains ooze-infused power, and Shredder evolves into a mythic threat, giving the line a strong, cohesive identity.
Built with durable construction and retro-compatible scale, the figures display well alongside Origins and similar lines. Strong character redesigns, collector-friendly packaging, and dual-franchise appeal have made Turtles of Grayskull a standout modern crossover series with consistently high demand across major marketplaces.
This page serves as your complete Turtles of Grayskull checklist and database, making it easy to track waves, variants, release years, affiliations, and included accessories. Use it as your central guide for building a complete Turtles of Grayskull collection.
The Turtles of Grayskull storyline brings together the worlds of Teenage Mutant Ninja Turtles and Masters of the Universe in a battle for the fate of Eternia. The adventure begins when Leonardo, Raphael, Donatello, and Michelangelo discover that Shredder and Krang are working with Skeletor, the powerful villain from Eternia.
Their dangerous alliance combines Utrom mutagen with dark magic, creating a mysterious purple poison that threatens to plunge Eternia into chaos. The four Ninja Turtles find themselves in a strange new world where they must join forces with the heroes of Masters of the Universe to stop the growing threat.
But there’s a major complication: He-Man is missing. With Eternia in danger and powerful enemies working together, the Turtles must adapt to their unfamiliar surroundings and help protect a realm filled with magic, legendary warriors, and monstrous adversaries.
The crossover blends the science-fiction elements of Teenage Mutant Ninja Turtles with the fantasy mythology of Masters of the Universe, providing the story behind the line’s reimagined characters and designs. Familiar heroes and villains take on new forms that combine the visual identity of both franchises, making Turtles of Grayskull a distinctive crossover for collectors.
Explore the Turtles of Grayskull figure checklist above to browse the released waves, visit individual figure pages, and track the characters and accessories in your collection.
Wave: 6
Year Released: 2025
UPC: 194735264292
Devious Dragon!
Ninjor carries a secret under his hood: he has always been the last dragon man of Eternia, hiding from all until the next coming of Serpos!
Accessories: Dragon head with articulated jaw, removable translucent articulated wings, sword
Wave: 6
Year Released: 2025
UPC: 194735264407
Master of Capturing Snakes!
Armed with his modified Techno Clamp, the heroic Clamp Champ is ready to hunt down the Snake Men!
Accessories: “Viper Vice” Techno Clamp, Removable Armor
Wave: 6
Year Released: 2025
UPC: 194735264322
Powerful Party Dude!
Michelangelo’s nunchaku, fused with the Power of Grayskull, fill him with radical secret powers to take down the Snake Men.
Accessories: Mikey’s signature weapon has been adapted for reptile defense -as two-piece connectable “energy field” nunchuks. His shell doubles as a shield.
Wave: 5
Year Released: 2025
UPC: 194735264285
Mutated Serpent Ninja Master
It was not Shredder’s first time submerged in the Ooze. Last time he emerged mutated with insane strength. This time, fused with King Hiss’ venom, Shredder is now the Snake Men’s weapon of destruction: Super Shredder!
Accessories: Super Shredder’s Reptile Wars-themed cape is removable. He’s armed with a snake-encircled scepter and sword. In addition to his signature metallic helmet, his defense is augmented by removable armor — metallic spiked armor on his shoulders, metallic spiked and fanged arm bracers, and harness and skirt armor.
Wave: 5
Year Released: 2025
UPC: 194735264421
Mutated Disguised Leader of the Snake Men
King Hiss has tried time and time again to lead the Snake Men to glory. Now that Shredder has come to him with the mutagen, King Hiss discovers that when combined with their toxin, the Snake Men can become the most powerful force on Eternia.
Accessories: Comes with alternate Foot Soldier Torso and Head to swap between Foot Soldier and 4 Armed Mutated King Hiss form.
Wave: 5
Year Released: 2025
UPC: 194735264216
Mutated Snake Men Creature!
The Ooze left a trail leading straight to the recently mutated Rattlor, who can now control the minds of those infected with the venomized mutagen.
Accessories: Includes his signature tail and a long, fully articulated neck with ball joints, ending in a hinged jaw.
Wave: 5
Year Released: 2025
UPC: 194735264483
Snake-Hunting Spy!
Nobody knows how truly dangerous the Snake Men are more than Mekaneck, the snake-hunting specialist able to spy on King Hiss from a distance.
Accessories: Mekaneck has 2 neck extenders, a removable torso armor piece and a venom shield. He’s armed with his signature club.
Wave: 5
Year Released: 2025
UPC: 194735264520
Snake-Hunting Tech-Head!
Donatello’s ingenuity combined his technology with the Power of Grayskull to create weapons to track that snake-in-the-grass, Shredder.
Accessories: Donatello has removable waist sash, shoulder armor, hood and snake-ified face guard. He’s armed with a staff with removable mace caps and removable flame effect. His turtle shell doubles as a front-facing shield.
Wave: 5
Year Released: 2025
UPC: 194735264315
Snake Hunter with a Short Fuse!
Shredder may have slithered away once, but Raphael is not about to let him or any of the Snake Men slip through his sai once again.
Accessories: Raphael is armored up with removable snake fang gauntlet, waist sash and shoulder armor piece. His removable shell doubles as a shield. His 2 split-fingered Sai swords can be sheathed on his back shell.
Wave: 4
Year Released: 2024
UPC: 194735190362
Mutated Mindless Leviathan!
The Ocean Warlord heeded Skeletor’s beckoning from Snake Mountain at his own peril. The two always held an uneasy alliance, but Mer-Man did not suspect that he was walking into a trap. He was taken by an alien called Krang, covered in Mutagen, and awoke forever changed in both his mind and body.
Accessories: Sword, Trident, Swappable Tail and Legs