I saw it very early in my childhood, between about 20-25 years ago.
- Live action
- People were piloting giant robots (can't remember just how big)
- I believe they were moving their feet and hands while being in upright position to control the robot (similar to Pacific Rim)
- People on the streets had the surgical white masks (China or Japan probably)
- I think the robots were fighting it out in arenas, but not sure about this part
There was a robot that would fire its own fists as a projectile. The protagonist pilot ended up on the ground outside his robot (I believe it was destroyed/damaged). He hid behind one of these discarded previously fired fists. He then tinkered with the exposed wires from the robot fist and finally managed to active it. The fist either flew at the (bad) robot, or it fired some missiles at it.
I don't even know in what language the movie was...