A more traditional head for Fans Hobby's Archenemy, and Gun Fighter by extension. Tested with my Elegoo Mars Pro and verified to work with the transformation, though you might have to flex the windshield back a bit to prevent paintrub.

Installation is easy. Remove the old head, fit the face partially into the helmet, hook the slot around the neck's hinge pegs, and push the helmet down. The metallic turquoise was matched with Mr Color Cyan and Yellow pigments mixed into Super Chrome Silver 2. The grey was with white, black, and Magenta pigment. Eyes are Mr Color Shine Red, outlined with a black panel liner Gundam marker.