Human vs humanoid robot cage fight goes viral

The viral footage getting most of the attention comes from one of those T800 fights. LaPenna moves toward the robot and throws several punches. The machine fires back with punches and kicks before one shot sends him flying across the cage. And if the robot looks like it walked straight out of "The Terminator," that was clearly the point. But the bigger story here is what these machines can actually do, who was controlling them and how much of the fighting was really driven by AI.

Missed CyberGuy LIVE? Watch the replay and discover 5 ways AI can help you get better healthcare.

Our free CyberGuy LIVE class Get Better Healthcare with AI has ended, but you can still watch the full replay. Kurt "CyberGuy" Knutsson walks you through five practical ways AI can help you prepare for appointments, remember important details, understand complicated medical information, research prescription questions and organize your next steps. No technical experience is needed.

Plus, recordings of all our past classes are available, including How to Stop Spam, Phone Security and Financial Protection, each with a free downloadable checklist.

Watch the free replays and get your checklists at CyberGuyLive.com

After facing a smaller Unitree G1, LaPenna went up against two modified EngineAI T800s, built by Chinese robotics company EngineAI. EngineAI lists the standard T800 at about 5 feet 8 inches tall and roughly 165 to 187 pounds, depending on the version. REK describes the modified machines used in its fights as about 6 feet tall. For the event, REK also gave the T800 a much more intimidating look. The mechanical head and glowing red eyes lean heavily into "The Terminator" theme. Put a machine that size inside a fighting cage and you can see why the video grabbed so much attention.

The viral clip getting most of the attention only shows part of what happened that night. According to REK CEO Cix Liv, LaPenna faced three robots during the event. He reportedly started against a smaller Unitree G1 before moving on to two modified EngineAI T800 humanoids. REK says its modified T800 machines can kick with up to 850 pounds of force, which helps explain why the footage looks so intense.

LaPenna was knocked down during one of the T800 bouts, but Liv said he recovered, knocked the robot off balance and ultimately ended the fight with the robot's head coming off. REK has continued teasing more footage, and the short clips circulating online still do not show the full sequence of all three bouts. So what most people are seeing online is only one part of the event.

REK has been building toward this kind of event for a while. The company stages live fights where people remotely control humanoid robots against other humanoid robots. It also has a simulator that lets players learn the controls before some get the chance to pilot the real machines. Reflex Arc says REK's first simulator championship generated 3,670 matches, with the winners flown to San Francisco to pilot real robots at REK2 in August. The simulator uses the same basic controls and trained balance system as the physical robots. That helps explain where REK is going with all of this. The idea is to take something that feels like a video game and put it into a real fighting cage with actual humanoid robots. Then LaPenna stepped inside and raised the stakes by putting a person on the other side.

Strip away the Terminator head and the social media theatrics, and there is a pretty remarkable robotics demonstration underneath it. The larger T800s weigh as much as about 187 pounds, yet they can stay balanced in a confined fighting area, absorb contact and execute punches and kicks under human control.

The hardware is clearly becoming more capable. Compare today's humanoids with the awkward walking robots we were watching only a few years ago, and the change is dramatic. And something tells me Frankie LaPenna will not be the last person crazy enough to climb into the cage with one.

Would you be comfortable living or working around a humanoid robot this powerful if you knew a person could control it remotely? Why or why not? Let us know by writing to us at Cyberguy.com

Sign up for my FREE CyberGuy Report

Copyright 2026 CyberGuy.com. All rights reserved.