This is for real: Japanese robotics engineers Suidobashi built a fuctioning, weaponized, human-piloted mecha called The Kuratas. An American firm, Megabots, built one of their own - a two-pilot (because of course) beast with similar capabilities... and then challenged their Japanese counterparts to a fight. Between the robots:
...a challenge which Suidobashi has now accepted, because "Giant robots are Japanese culture" - though they appear to stipulate that they first want both robots to outfit for melee combat, as opposed to their current functions.
Alright, then. It's not quite where this sort of thing was supposed to be by now... but I'll take it.