Danbooru

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Collection: Badass Adorable

http://tvtropes.org/pmwiki/pmwiki.php/Main/BadassAdorable
For those pictures that would go into the Badass pool if it weren't for the fact that it's so damned cute. In other words, it makes you break down and go "Aww, who's a widdle asskicker? Who's a widdle asskicker?"
No "HHHHNNNNNNGGG" inducing-ness necessary, but it can make for a convenient bonus.

Blacklisted:
1girl choujikuu_yousai_macross energy_cannon esbeliben giantess green_hair gun heart inui's_meltran inui_(jt1116) long_hair maclone macross mecha meltrandi pointy_ears purple_eyes regult walker weapon zentlardy_alphabet zentradi
1girl aegis_(persona) android athena_(megami_tensei) bad_id bad_pixiv_id blonde_hair blue_eyes bow chikafuji hairband highres persona persona_3 ribbon short_hair
1girl animal_ears brown_hair cat_ears cat_tail chainsaw chen earrings hat jewelry kureha_mitsushige mask multiple_tails red_eyes saw short_hair slit_pupils solo tail touhou translated yakumo_ran yakumo_ran_(fox)
1girl animal_ears blonde_hair blush cat_ears cat_tail chibi extra_ears hoshizuki_(seigetsu) kemonomimi_mode mizuhashi_parsee monster_hunter o_o pointy_ears puru-see scarf short_hair solo tail touhou trembling
1girl \o/ ^_^ arms_up blonde_hair closed_eyes danmaku fang fingernails flandre_scarlet full_body happy hat katahira_masashi laevatein mary_janes one_side_up open_mouth outstretched_arms petticoat shoes short_hair socks solo touhou wings
1girl ahoge animal_ears animated animated_gif bad_id bad_pixiv_id chibi dog_ears dog_tail inu_sakuya izayoi_sakuya knife lowres monokuro_sai pixel_art silver_hair solo tail touhou transparent_background
1girl ahoge animal_ears animated animated_gif bad_id bad_pixiv_id blue_eyes chibi dog_ears dog_tail gatling_gun gun inu_sakuya izayoi_sakuya lowres monokuro_sai pixel_art silver_hair solo tail touhou transparent_background weapon
chibi engrish granvale mecha nanateru no_humans ranguage solo super_robot_wars super_robot_wars_the_lord_of_elemental text
1girl backpack bag blue_hair chibi fang hair_bobbles hair_ornament hat highres kawashiro_nitori key mimi-chan missile o_o pocket solo touhou two_side_up yume_shokunin
2girls alternate_color angry aura black_hair cape cityscape comic fusion giantess gohei hakurei_reimu hands_on_hips hands_on_lap head_bump kyako_youkan multiple_girls pixel_art red_eyes reiuji_utsuho reiuji_utsuho_(bird) silent_comic sitting third_eye touhou wings
1girl aisaka_taiga bad_id bad_pixiv_id bokken brown_eyes brown_hair chibi long_hair palmtop_tiger riding rutarou school_uniform solo sword thighhighs tiger toradora! weapon wooden_sword
1girl angry aura chibi detached_sleeves dragon_ball dragon_ball_z expressive_clothes fangs green_hair kochiya_sanae parody simple_background socha solo super_saiyan touhou
4girls 4koma comic inubashiri_momiji jizeru_(giselebon) kagiyama_hina kawashiro_nitori multiple_girls shameimaru_aya touhou translated
2girls blue_hair highres ikeda_kazumi kanon kawasumi_mai long_hair multiple_girls red_skirt school_uniform skirt sword tsukimiya_ayu very_long_hair weapon
2girls :3 :d >:) absurdres blue_hair chibi detached_sleeves frog green_hair hair_ornament highres kochiya_sanae long_hair multiple_girls open_mouth purple_hair red_eyes rolling short_hair smile snake touhou v-shaped_eyebrows yasaka_kanako yume_shokunin
1girl absurdres angry detached_sleeves frog green_hair hair_ornament highres kochiya_sanae long_hair macedonian_flag o_o open_mouth snake solo sunburst touhou yume_shokunin
1girl :< aka-kabuto_no_gema alice_margatroid armor blonde_hair blue_eyes doll helmet katana open_mouth polearm shanghai_doll short_hair solo spear sword touhou weapon
/\/\/\ 4koma 5girls :d >_< anger_vein angry aura bite_mark biting chibi closed_eyes colonel_aki comic flandre_scarlet gao handheld_game_console hat hong_meiling maid_headdress multiple_girls nintendo_dsi o_o open_mouth patchouli_knowledge ragequit remilia_scarlet saigyouji_yuyuko silent_comic smile tears touhou translated xd
1girl :d >_< absurdres arm_cannon black_hair blush_stickers bow cape chibi closed_eyes hair_bow highres long_hair no_nose open_mouth reiuji_utsuho sinra_(rakuto) smile solo third_eye touhou weapon wings xd