BANDAI 2001 SOTSU AGENCY SUNRISE Gundham Action Figure

This was in a boxlot I bought at auction because there was a piece in the lot I wanted. I have no clue who or what he is? I have no clue if he is missing any parts are pieces. This listing is a case of WHAT YOU SEE IS WHAT YOU GET - Plain and simple He is about 6 1/2" approx. I have no idea what the chain thing is or what it goes to. He does have crayon marks on him, so he will need a good cleaning. Since I cannot find another figure like this, I have no idea whether it is a complete figure. The right side flap at the hip does not stay up. Otherwise he moves freely. He does have crayon marks on him, so he will need a good cleaning.