JAXA and Toyota's 'Lunar Cruiser' moon rover is now a Transformers toy

closeup of a six-wheeled white moon rover transformer toy with the words "jaxa" and "toyota" written on its side, in front of the box it's sold in.
The "Lunar Cruiser," a pressurized crew moon rover developed by the Japan Aerospace Exploration Agency (JAXA) and Toyota now has an added feature in its Takara Tomy toy format: it can transform into Optimus Prime. (Image credit: collectSPACE.com)

It can now be revealed that Japan's proposal for a future moon rover is "more than meets the eye."

As first announced last June but just now starting to ship, a new scale model of the Japan Aerospace Exploration Agency's (JAXA) Lunar Cruiser not only faithfully reproduces the details of the astronaut transport developed in conjunction with Toyota, but also transforms into Optimus Prime, the leader of the Autobots.

Yes, the new Takara Tomy toy is a crossover between the real agency's concept and Transformers, the "robots in disguise" franchise.

"Bring the ultimate Transformers experience to your collection with the Takara Tomy Transformers Lunar Cruiser Optimus Prime action figure!" reads Habro's Pulse website, the toy company's direct-to-fan online store, which took $75 pre-orders for the Takara Tomy release. "This figure was designed to replicate the appearance of the Lunar Cruiser pre-exhibited in 2019."

Related: Meet 'Lunar Cruiser': Japan's big moon rover for astronauts gets a nickname

Optimus Prime retains his classic red and blue livery when in his robot form, after changing from the Lunar Cruiser. (Image credit: collectSPACE.com)

For the past five years, JAXA and Toyota have been advancing research on a vehicle that would enable sustained exploration of the moon's surface. Unlike the historic Apollo lunar rover and the lunar terrain vehicle(s), or LTVs, that NASA is set to announce for the Artemis program, the Lunar Cruiser (named after Toyota's Land Cruiser) is pressurized, allowing it to serve as a camper van for multi-day excursions.

Toyota's contributions to the six-wheeled JAXA rover include its fuel cell, which, in addition to a solar panel, will power the vehicle.

Takara Tomy's model is based on the first version of the Lunar Cruiser, which featured more windows, larger tires and a wider high-gain antenna than a revised concept shown off by JAXA and Toyota in October 2023.

JAXA and Toyota's concept for the Lunar Cruiser as first proposed in 2019 served as the model for the Transformers toy. (Image credit: Toyota)

Of course, neither iteration of the proposed rover could unfold to become a red, blue and gray robot. (If unfamiliar, Optimus Prime, or Convoy as he is known in Japan, becomes a semi truck in his original configuration, though he has taken on other vehicles before becoming the Lunar Cruiser.)

It takes about two dozen moves to fold, twist, deploy and snap into place the fully articulated robot form of the model (or in reverse, back into the rover). Optimus stands about 7 inches (18 centimeters) tall and is made almost entirely from ABS plastic.

The included solar panel accessory folds in half to become a shield that Optimus Prime can hold or mount to his body. In Lunar Cruiser form, the solar panel can be mounted on the vehicle's side (as JAXA and Toyota plan) or stored inside by lifting open the rover's hatchback.

Takara Tomy's Transformers Lunar Cruiser Prime is the latest crossover between the space exploration and the "robots in disguise." (Image credit: collectSPACE.com)

The Transformers Lunar Cruiser Optimus Prime is not the only time Transformers has crossed over with space exploration, both on screen and in real life.

In the original 1980s cartoon, Astrotrain was an evil Decepticon who could turn into both a train's engine and a space shuttle. In one episode, he transported Megatron, the leader of the Decepticons, to the moon, where they ultimately faced off with Optimus and the Autobots.

Later, Hasbro and Takara Tomy introduced Galaxy Shuttle, an Autobot that could transform into the Orion winged orbiter, and Sky Lynx, which went from a bird-like creature (or "dino-bird") to a space shuttle complete with a NASA logo on the side of its payload bay.

In "Transformers: Dark of the Moon," the third movie in the Michael Bay series, released in 2011, the plot revolves around a piece of technology that crashed on the moon in the 1960s, re-writing the history of NASA's Apollo 11 mission. The film was partially shot at NASA's Kennedy Space Center in Florida and included scenes filmed inside the Vehicle Assembly Building and on Pad 39A with the space shuttle Discovery.

Apollo 11 astronaut Buzz Aldrin had a cameo in "Dark of the Moon," where he is seen meeting Optimus Prime. Later, the actor who gave voice to the character, Peter Cullen, recorded several videos for NASA, including an introduction to the agency's television channel, a video celebrating the 40th anniversary of the Apollo program and an overview of the James Webb Space Telescope.

Most recently, when Japan landed its first probe on the moon in January of this year, the Smart Lander for Investigating Moon, or SLIM, deployed a compact rover designed by Takara Tomy. The Sora-Q robot changed its shape from a sphere to expose its cameras and ultilize its two hemispheres as wheels.

Prior to the historic lunar touchdown, Takara Tomy released a toy version of Sora-Q, which like the real rover on the moon, was also capable of transforming.

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Robert Z. Pearlman
collectSPACE.com Editor, Space.com Contributor

Robert Pearlman is a space historian, journalist and the founder and editor of collectSPACE.com, an online publication and community devoted to space history with a particular focus on how and where space exploration intersects with pop culture. Pearlman is also a contributing writer for Space.com and co-author of "Space Stations: The Art, Science, and Reality of Working in Space” published by Smithsonian Books in 2018. He previously developed online content for the National Space Society and Apollo 11 moonwalker Buzz Aldrin, helped establish the space tourism company Space Adventures and currently serves on the History Committee of the American Astronautical Society, the advisory committee for The Mars Generation and leadership board of For All Moonkind. In 2009, he was inducted into the U.S. Space Camp Hall of Fame in Huntsville, Alabama. In 2021, he was honored by the American Astronautical Society with the Ordway Award for Sustained Excellence in Spaceflight History.