A humanoid robot confronts a man armed with a knife; in another scene, it pushes a person out of the path of a moving car, taking the full impact of the vehicle itself. Later, the robot is shown lifting the front end of a car, executing martial arts strikes, and performing impressive acrobatic feats.

These images are part of a new demonstration by the Chinese manufacturer Unitree Robotics, which showcased its humanoid in scenarios simulating the protection of human beings. The star of this display—dubbed the "H2-X Kung Fu Legend"—is based on the company’s H2 platform. But are we truly looking at a robot capable of serving as a bodyguard?

Unitree Robotics had already garnered attention with humanoids capable of running, jumping, and executing complex movements. Now, the manufacturer has explored a different application: leveraging these physical capabilities for situations involving threats or rescue operations. However, as you know, I always aim to present the facts regarding technological advancements; in this instance, the scenes were staged by the manufacturer itself. Consequently, there is no evidence that the robot identified the danger, made an independent decision, or autonomously calculated the best way to protect someone.

In the scene where the humanoid lifts the front of a car while a person retrieves a dummy trapped underneath, the intent is to demonstrate how the strength of such machines could assist rescue teams in situations where moving heavy objects poses a risk to first responders—and their physical capabilities go well beyond even that.

The H2-X is shown leaping over a car, performing somersaults, and delivering blows powerful enough to damage a vehicle's bodywork. At one point, it jumps from a platform—identified in the video as being 4 meters high—and manages to land on its feet. According to Unitree Robotics, the footage has not been artificially sped up. Even so, the video does not reveal how many attempts were required to execute each move, nor how the robot would react to unexpected obstacles or unforeseen situations.

The manufacturer also cites a maximum battery life of approximately 8 hours; however, this figure refers to the robot simply standing upright—not 8 hours of combat or intense physical labor. Despite these limitations, the demonstration represents a significant advancement in the physical capabilities of humanoid robots. Machines that once struggled just to walk can now perform sequences requiring strength, balance, speed, and coordination. Such capabilities could have applications far beyond personal security, including emergency response, inspections in hazardous environments, and tasks where sending human workers would be too risky.

However, transforming a physically impressive robot into a reliable bodyguard requires solving a far more complex problem. Imagine a machine attempting to distinguish a genuine threat from a prank, identifying who needs assistance, or deciding exactly how much force to use to stop an attack. A single mistake could endanger the very people it is meant to protect. For now, the H2-X Guardian showcases potential, but it does not prove that Unitree has developed an autonomous bodyguard ready for real-world deployment.

Perhaps this is the most important question raised by these images: while teaching a robot to fight is already an impressive challenge, teaching a machine to recognize when—and, more importantly, when *not*—to use force may be the true hurdle to having humanoids like these working alongside us.