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.
With He-Man missing, Man-At-Arms knows all of Eternia is vulnerable to Skeletor’s nefarious schemes. Fortunately, he meets four heroic brothers, the Teenage Mutant Ninja Turtles! Together, they can save the universe.
Accessories: Duncan’s “fur” adorned chest harness, left shoulder, left arm and left knee armor pieces are turtle-inspired and removable. He’s armed with a tortoise shell-topped mace and a shell shield that attaches to his hand or harness.
Crossing dimensions isn’t so bad. Not if you’re Donatello and strike up a friendship with Man-At-Arms. When these two tech geniuses put their minds together, they create Turtle-inspired Eternian armor to combat Krang’s mutants!
Accessories: Donatello has a mace-ified staff accessory and the turtle shell on his back can be removed and attached to his arm as a front-facing shield! The ‘fur’ adorned chest harness is also removable.
What happens when the Most Powerful Man in the Universe is doused with mutagenic ooze from another dimension? Nothing good. With He-Man now a mindless pawn in Skeletor’s hand, will this be the end of Eternia?
Evil & Armed with M.O.U.S.E.R. Unbeknownst to him, Trap Jaw was the first of Krang’s ooze experiments. The cybernetic walking weapon of destruction fused with Baxter Stockman’s M.O.U.S.E.R. technology, making him a mindless minion in Skeletor’s mutant army.
Accessories: Mouser, Blast Effect, Arm Attachments, Metal-Boto Build A Figure Parts
Collector's Note: Includes Metal-Boto Parts 1/4: Right Arm, Roboto Arm Attachments
An explosion from the Technodrome sends the Teenage Mutant Ninja Turtles across dimensions to Eternia. Now augmented with tech from Man-At-Arms’ armory, Leonardo leads his brothers into battle for the Power of Grayskull!
Accessories: Two half-swords combine into a Power Katana, Removable turtle shell shield