Hasbro’s Transformers Collaborative line has crossed over with Scooby-Doo. The Mysterious Prime and Automutt two-pack went live for pre-order on July 7, 2026 at 1PM ET on Hasbro Pulse and participating retailers, with an approximate retail price of $49.99 and a Fall 2026 ship date. BigBadToyStore and Entertainment Earth both list the set at $57.99 with stock estimated to arrive November 2026, and it is already orderable on Amazon.
We have opened a full product page for the set with live retailer links.
Mysterious Prime is a 6-inch scale robot that converts to a Mystery Machine inspired van in 19 steps. The head gimmick is the hook: the figure ships with four swappable heads styled as robot versions of Shaggy, Fred, Daphne, and Velma, plus orange and green ascots for the Fred and Daphne looks and camera and flashlight accessories the robot can hold. It is a Mystery Machine flavored riff on the Optimus Prime van-to-bot silhouette rather than a redeco of an existing mold.
Automutt is the companion piece, converting between a Scooby-Doo inspired dog and a box of Scooby Snacks in 6 steps. The format sits squarely in the cassette-minion tradition that Soundwave built, scaled down to a pack-in.
The Collaborative line has previously mashed Transformers with Back to the Future, Ghostbusters, Jurassic Park, Teenage Mutant Ninja Turtles, and Top Gun, and Hasbro’s product copy confirms more crossover entries are coming.
Images: Hasbro official press photos via TFW2005.
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