Gorilla Tank (ゴリラタンク,Gorira Tanku?) is a sub-boss in Plant Man's stage in Mega Man 6. There are two of these enemies in said stage. It can shoot a semi-circular spray of shots, and also launch its fist at Mega Man. The eyes are its weak point, but Mega Man can also shoot at other parts of the tank to knock it back and get Mega Man some breathing room.
Using hacks, one can see that this sub-boss's treads work as a platform.