Rule 34 Dev - 1970s_(style) 1boy closed_mouth collar green_hair holding holding_weapon lance lips long_hair male_focus mecha oldschool oobari_masami pink_lips polearm retro_artstyle robot simple_background sketch tatsunoko_production tekkaman_(character) tsurime uchuu_no_kishi_tekkaman upper_body weapon white_background|3590027181