California regulators have stepped in to stop what looked like a real-life mashup of Terminator and MMA, ordering robot fighting startup REK to halt its human vs humanoid cage matches after a viral bout featuring influencer Frankie LaPenna and a towering robot in San Francisco.
The controversial exhibition took place on September 18 in a cage at REK’s arena in San Francisco, promoted as the “world’s first Human vs Robot fight” and pitting 29-year-old content creator Frankie LaPenna against a six-foot humanoid machine branded as “Rekbot.” The robot is based on an EngineAI T800 platform with a Terminator-style head, and was driven by a remote human pilot using a virtual reality system rather than preprogrammed autonomy, turning the match into a kind of high-stakes telepresence brawl. Footage shows the robot blasting LaPenna with high kicks to the face and body and repeatedly knocking him into the cage walls, even as REK insists he ultimately prevailed in most of the rounds against multiple robots.
REK—short for Robot Entertainment Kombat—markets itself as “the humanoid robot fighting league,” with an online simulator that lets players train against virtual versions of its machines and, in theory, qualify for future live events. That branding, and the physical punishment visible in the September fight, drew the attention of the California State Athletic Commission (CSAC), which oversees professional and amateur boxing, kickboxing, and mixed martial arts in the state. In a cease-and-desist letter sent in late September and addressed to REK founder and CEO Cix Liv, CSAC declared the human vs robot contest an “unsanctioned” bout and ordered the company to stop “holding, promoting or advertising any boxing or mixed martial arts contest, match, or exhibition involving any human” in California without commission approval.
The notice, signed by CSAC executive officer Andy Foster, goes further than a simple warning, stating that organizing such events without a license can be treated as a misdemeanor offense under California law. Coverage in multiple outlets notes that CSAC’s authority hinges on the presence of a human fighter: because LaPenna entered the cage and absorbed strikes, the match fit the commission’s definition of a regulated combat sports exhibition, regardless of whether the opponent was human or robot. REK’s showcase reportedly featured LaPenna facing three different humanoid robots over successive rounds rather than a single opponent, underscoring how far the spectacle diverged from traditional sanctioned MMA formats.
Cix Liv, a longtime XR and tech personality who has publicly said he legally adopted his online alias after an identity theft incident, took the unusual step of celebrating the cease-and-desist by posting it on social media. In interviews and posts highlighted by tech and robotics outlets, Liv portrays REK as a pioneering effort to turn high-end humanoid robots into entertainment athletes and frames the commission’s move as an early skirmish in a coming regulatory battle over human–machine competition. For now, though, the letter effectively slams the brakes on any future REK events in California that involve flesh-and-blood participants sharing a cage with the company’s hulking machines.
The clash sets up a fascinating line in the sand between long-running robot combat formats—think pure robot-on-robot shows like BattleBots—and this new hybrid category where teleoperated humanoids trade blows with human fighters. While the machines in REK’s bout were piloted, not autonomous, the visual language was unmistakably sci-fi: chrome skeletons, red eyes, and VR-guided kicks aimed at a real person’s head. That raises thorny questions that regulators, insurers, and fans will have to wrestle with long before fully self-directed fighting robots exist, including who bears liability when a teleoperated machine injures a human and how much risk audiences are willing to tolerate in the name of spectacle.
For geek culture, REK’s short-lived Californian experiment shows how quickly familiar genre fantasies can collide with everyday law. A tech startup tried to build a “humanoid robot fighting league” straight out of a cyberpunk sports anime; within weeks, the same bureaucracy that governs regional boxing cards stepped in and called foul. REK can pivot to robot-vs-robot exhibitions or look for friendlier jurisdictions, but any future attempt to put humans back in the cage with humanoids is likely to face intense scrutiny—not just from athletic commissions, but from a public suddenly grappling with what it really means to bring our killer-robot fiction into a live arena.
