The Smelting Ruins, where mindless machines go to meet their end. However, one cyborg will reactivate to bring an end to those who destroyed the world. Shoot and dodge your way through an onslaught of killer machines and deadly traps, as M-6 attempts to escape. With the power of the M-class artillery, can M-6 power through? Or will M-6 fall under the might of the machines and its jailer?