Rule 34 Dev - 1girl 2010s 2019 2d 2d_(artwork) _zzappyy_ angry_face anthro black_background black_tank_top black_topwear blue_body blue_skin breasts cleavage digital_media_(artwork) eyepatch female female_anthro female_only fish fish_girl hair holding_spear holding_weapon long_hair marine non-mammal_breasts ponytail red_hair sharp_teeth simple_background slit_pupils solo solo_female spear tank_top topwear twitter undertale undertale_(series) undyne upper_body video_game_character video_games weapon yellow_sclera|1026393