This is a MODEROID Robocop with a jetpack. There was an accident, and the arm joints and other parts dissolved after being soaked in paint remover. It's a shame to throw it away, and ordering replacement parts is ridiculously expensive, so I fixed the elbows and assembled it anyway. I used acrylic gouache. For the silver parts, I used a color called Kurogin (black silver). The surface is rough, giving it a three-dimensional feel. I did some enamel washing and applied a top coat. By the way, the jetpack and instructions are all there. They are unassembled. I'm selling it, hoping it will cover the cost of my next project, haha.