With mechas, people can be like cars. Running wild on the road, people can also jump, easily reach forty or fifty meters, or even hundreds of meters. People are even capable of reaching speeds of hundreds or thousands of kilometers per hour. Run in the wilderness. But human beings have also paid a heavy price, because all the power comes from the reactor, and the particles emitted by the reactor are very radioactive, and in order to resist the radioactive particles, human beings can only rely more on the barrier formed by the reactor, and the radioactivity is getting bigger and bigger where there is no barrier.