Reddit laughs as humanoid robot kicks its trainer between the legs – then mimics the pain

The Unitree G1 is a true all-rounder. The humanoid robot has already been shown playing table tennis, shooting hoops, and performing impressive kung fu moves. This latest clip, however, is not about showcasing its abilities – but about what happens when things go slightly off-script. In this setup, the G1 is trained via real-time teleoperation. Wearing a motion capture suit, the human operator’s movements are mirrored by the robot, likely as part of research into AI behavior and remote control systems.

The human trainer performs a series of kicks and punches, mirrored by the humanoid robot. At one point, however, the G1 misses a turning movement but still follows through with the next kick – landing it squarely in the trainer’s groin. The trainer drops to his knees in pain, a reaction the robot immediately mimics. This moment, in particular, appears to be drawing the biggest laughs on Reddit.

The clip originally appeared on the Chinese video platform Bilibili on December 25 before being shared on X a day later – among others by Wes Morrill, chief engineer of the Tesla Cybertruck.