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animated_skeleton bone concept_art english_text machine male mettaton official_art papyrus_(undertale) robot sans_(undertale) skeleton text toby_fox undead undertale video_games anthro armpit_hair armpits asgore_dreemurr atlantart boss_monster caprine goat machine male mammal mettaton mettaton_ex musclegut muscular muscular_male robot simple_background text undertale video_games balls determination ex gosth invalid_tag machine male mettaton mettaton_ex penis pose robot show sketch solo undertale video_games blurry bokeh commentary_request depth_of_field fire full_body gloves holding holding_microphone mettaton microphone no_humans robot smoke solo sparkle undertale wheel white_gloves asriel_dreemurr boss_monster caprine goat machine mammal mettaton microphone microwave mouse protagonist_(undertale) robot rodent scarf simple_background someclevernamepun undertale video_games asriel_dreemurr boss_monster caprine dramatic english_text goat human humor machine mammal mettaton plate protagonist_(undertale) robot someclevernamepun spotlight text undertale video_games <3 asriel_dreemurr boss_monster caprine chara_(undertale) clock cup fur goat group horn inorheona lamp long_ears machine mammal mettaton photo poster protagonist_(undertale) robot sofa table undertale video_games white_fur angel armor cu_chulainn_(megami_tensei) fish machine marine megami_tensei melee_weapon metatron_(megami_tensei) mettaton mikoto-chan polearm robot simple_background standing undertale undyne video_games weapon wings <3 2016 4_fingers aircraft alphys ambiguous_gender animated_skeleton annoying_dog_(undertale) anthro anthropod arachnid armless arthropod asgore_dreemurr asriel_dreemurr bag barefoot beard beverage black_hair black_sclera blonde_hair blue_eyes blue_hair blue_skin blush bone boots boss_monster brother brown_fur brown_hair buckteeth building burgerpants canine caprine carpet cat chara_(undertale) child clothed clothing coat cousin cub dog empty_eyes english_text excited eye_patch eyelashes eyes_closed eyewear facial_hair family fangs father feline female female/female fin fish food footwear fully_clothed fur gaster ghost gills glasses gloves goat groceries group hair hair_bow hair_over_eye hair_ribbon hair_tuft happy hat hatchling hoodie horn house human humanoid jacket japanese_food japanese_text kotatsu lava living_aircraft living_machine living_room lizard long_ears looking_at_viewer lying machine male mammal marine metal mettaton microphone monster_kid mother muffet multi_arm multi_eye multi_limb napstablook nyusu_ut on_back on_front open_mouth papyrus_(undertale) parent pawpads playing pointing protagonist_(undertale) purple_skin red_eyes red_hair reptile ribbons robes robot sans_(undertale) scalie scarf sharp_teeth shyren sibling sitting skeleton sleeping slightly_chubby smile soda spider spikes spirit striped_topwear stripes sweat sweater tea tea_pot teeth television tem temmie_(undertale) text tongue tongue_out toriel translation_request tsunderplane undead undertale undyne video_games vulkin white_fur yellow_skin young alphys building clothing crying english_text fish house kasunshine laugh lizard machine marine mettaton news_report reptile robot scalie simple_background suit tears text tree undertale undyne video_games winter asgore_dreemurr asriel_dreemurr beard boss_monster caprine chara_(undertale) chimney christmas christmas_tree criminalbudgie cuddling delta_rune facial_hair fur goat group holidays horn human long_ears mammal mettaton protagonist_(undertale) sack santa_claus tree undertale video_games white_fur alphys animated_skeleton antlers arrow asgore_dreemurr beard bone book boss_monster candy candy_cane caprine christmas clothing elemental eyewear facial_hair fire_elemental fish food gift glasses goat grillby hat holidays horn human lizard machine mammal marine mettaton microphone monster_kid on_lap papyrus_(undertale) pie protagonist_(undertale) reptile robot sans_(undertale) santa_claus scalie sitting_on_lap skeleton sweater toriel undead undertale undyne video_games yamsgarden alphys animated_skeleton antlers asgore_dreemurr asriel_dreemurr bone boss_monster caprine chara_(undertale) christmas dark fangs fish flora_fauna flowey_the_flower fur gaster gift goat hat holidays horn human lizard long_ears machine mammal marine mettaton monster_kid night outside papyrus_(undertale) pine_tree plant protagonist_(undertale) reptile robot sans_(undertale) santa_claus scalie scarf singing skeleton snow tc-96 toriel tree undead undertale undyne video_games white_fur winter 2boys 2koma android barefoot black_hair boots bottomless comic eyelashes eyes_closed eyeshadow frisk_(undertale) gloves greyscale hair_over_one_eye instant_loss_2koma koshiitai mating_press mettaton mettaton_ex missionary monochrome multiple_boys open_mouth penis sex short_hair sparkle striped striped_shirt t-shirt translation_request undertale yaoi 2016 absurd_res alphys amalgamate ambiguous_gender animated_skeleton annoying_dog_(undertale) anthro asgore_dreemurr bed bone boss_monster building canine caprine child clothed clothing colored comic dialogue dog dresser endogeny eyes_closed feral fish flora_fauna flower flower_pot flowey_the_flower food gaster ghost goat hi_res hoodie house human humanoid interior ladder lamp laugh lizard lying lynxgriffin machine male mammal marine mettaton monochrome napstablook outside papyrus_(undertale) photo picture_frame pillow plant plushie poster protagonist_(undertale) reptile robot sans_(undertale) scalie sitting skeleton sky smile sound_effects speech_bubble spirit star table text toriel undead underground undertale undyne video_games window young alphys animated_skeleton asgore_dreemurr beard blush bone boss_monster caprine dualityfrisk facial_hair fangs fish fur goat group hand_holding hug lizard long_ears lying machine mammal marine mettaton monster_kid papyrus_(undertale) reptile robot sans_(undertale) scalie simple_background skeleton stripes toriel undead undertale undyne video_games white_fur alphys asgore_dreemurr cake chara_(undertale) comic flower flowey_(undertale) frisk_(undertale) mettaton monster_girl monster_kid_(undertale) muffet multiple_girls napstablook papyrus_(undertale) pie sans toriel translation_request undertale undyne 2016 absurd_res alphys amalgamate ambiguous_gender amphibian animated_skeleton anthro arachnid arthropod asgore_dreemurr bone boss_monster bratty_(undertale) building burgerpants caprine car cat catty_(undertale) child clothed clothing comic crocodile crocodilian dialogue elemental endogeny eyewear feline female fence fire_elemental fish flora_fauna flower flower_pot flowey_the_flower frog froggit gaster gerson ghost glasses goat goner_kid grillby happy hi_res house hug human humanoid jerry_(undertale) lab_coat lizard lynxgriffin machine mad_dummy male mammal marine mettaton monster monster_kid muffet napstablook outside papyrus_(undertale) party plant protagonist_(undertale) reptile robot sans_(undertale) scalie size_difference skeleton smile sound_effects speech_bubble spider spirit surprise text toriel tree turtle undead undertale undyne vehicle video_games young mettaton sans tagme undertale video_games <3 asriel_dreemurr boss_monster caprine child comic crying dialogue door dream english_text fangs fire fur goat hi_res horn human long_ears machine mammal mettaton night nightmare protagonist_(undertale) robot tc-96 tears text toriel undertale video_games white_fur young 2016 absurd_res alphys amalgamate ambiguous_gender animated_skeleton anthro asgore_dreemurr avian bird bone boss_monster building burgerpants caprine child clothing cloud comic dialogue endogeny eyewear feline female fence fire fish flora_fauna flower flower_pot flowey_the_flower gaster gaster_blaster ghost glasses goat goner_kid hat hi_res horn hug human humanoid lab_coat lizard long_ears lynxgriffin machine magic male mammal marine mettaton napstablook outside overalls papyrus_(undertale) plant protagonist_(undertale) reptile robot sans_(undertale) scalie skeleton sound_effects speech_bubble spirit star suitcase sun tears text toriel tree undead undertale undyne video_games young 2016 anthro areola big_breasts breasts cat catty_(undertale) dbaru duo english_text erect_nipples feline female flashing huge_breasts machine male mammal mettaton nipples robot slightly_chubby text undertale video_games <3 2016 animated_skeleton annoying_dog_(undertale) anthro arachnid armor arthropod asgore_dreemurr black_hair black_nose blonde_hair bone boots brown_hair canine caprine chainsaw claws clothing cup dog doughnut drinking english_text eye_patch eyes_closed eyewear facial_hair female feral fire fish flora_fauna flowey_the_flower food footwear fur gloves goat group hair happy hi_res horn human insect long_hair machine male mammal marine mettaton monster muffet nervous open_mouth papyrus_(undertale) plant ponytail protagonist_(undertale) red_hair robe robot sandals sans_(undertale) shoulder_pads skeleton smile spider temmie_(undertale) text tools toriel undead undertale undyne uwasa video_games weapon white_fur alphys annoying_dog_(undertale) asgore_dreemur asriel_dreemur bone broken_glass canine chain chandelier chara_(undertale) dog falling flower handshake human humanoid machine mammal melee_weapon mettaton mnstrcndy papyrus_(undertale) plant platform polearm protagonist_(undertale) red_eyes robot sans_(undertale) space spear splanet stained_glass stairs toriel undertale undyne video_games weapon angstrom big_breasts breasts crossgender female machine mettaton robot solo undertale video_games 6+boys :d androgynous android animal annoying_dog arch arm_up armor arms_at_sides asgore_dreemurr asriel_dreemurr back beard black_eyes black_hair black_sclera black_shorts blue_eyes blue_jacket blue_shorts blue_skin blue_sweater bone boots boxing_gloves breasts brown_hair brown_hat cape clenched_hand clenched_hands closed_eyes closed_mouth column_lineup commentary cowboy_hat crown dated dog door english_commentary evil_smile extra_eyes eyepatch facial_hair fang_out fangs fighting_stance flower flowey_(undertale) forest frisk_(undertale) fur-trimmed_jacket fur_trim gloves glowing glowing_eye gorget grin hair_over_one_eye hand_in_pocket hand_on_hip hat head_fins headband heart heart_necklace highres holding holding_weapon hollow_eyes horns jacket jewelry k_ptn knife legs_apart light_particles long_hair long_sleeves looking_at_another looking_at_viewer medium_breasts mettaton mettaton_ex monster monster_girl motion_blur multiple_boys multiple_girls nature night night_sky one_eye_covered open_clothes open_jacket open_mouth outdoors papyrus_(undertale) pendant photoshop_flowey pine_tree pink_footwear polearm ponytail red_eyes red_footwear red_gloves red_hair red_lips red_ribbon red_scarf red_skirt ribbon sad sans scarf sharp_teeth short_hair shorts signature size_difference skeleton skirt sky slippers smile smirk spear spoilers standing striped striped_sweater sweater teeth toriel tree tutu undertale undyne undyne_the_undying v-shaped_eyebrows very_long_hair weapon yellow_flower androgynous android back black_hair blue_sweater brown_hair brown_hat cowboy_hat dated fabulous finger_on_trigger frisk_(undertale) glowing grin gun hair_over_one_eye hand_on_hip handgun hat heart highres holding holding_gun holding_weapon k_ptn left-handed long_sleeves looking_at_another mettaton mettaton_ex one_eye_covered pose short_hair signature smile stage stage_lights striped striped_sweater sweater undertale w_arms weapon 77777054 :d =_= androgynous android boots brown_hair closed_eyes cowboy_hat cross-laced_footwear frisk_(undertale) gloves gradient gradient_background hair_over_one_eye hat high_heel_boots high_heels looking_at_another mettaton mettaton_ex open_mouth pink_eyes pink_footwear robot shoes short_shorts shorts smile sneakers umbrella undertale v v-shaped_eyebrows white_gloves <3 ambiguous_gender bone hair hug kissing machine male mettaton not_furry papyrus_(undertale) robot simple_background skeleton standing undead undertale video_games machine mettaton microphone robot sasamix solo undertale video_games biting_lip black_hair blue_background english_text eyes_closed eyeshadow frown green_background grin hair machine makeup male mettaton mettaton_neo open_mouth orange_background purple_background purple_hair red_background robot satsuki-udon simple_background solo sweat sweatdrop text tongue tongue_out undertale video_games yellow_background <3 <3_eyes alligator anthro biting_lip black_hair blonde_hair blue_hair blush bratty_(undertale) breasts brown_fur burgerpants cat catty_(undertale) cleavage clothed clothing crocodilian english_text feline female fur gloves group hair hat lipstick machine makeup male mammal mettaton multicolored_hair open_mouth pink_eyes pose purple_fur reptile robot satsuki-udon scalie sweat text tongue tongue_out two_tone_hair undertale video_games yellow_eyes ambiguous_gender bone comic dream human machine male mammal mettaton nightmare papyrus_(undertale) protagonist_(undertale) robot skeleton undertale video_games xxmileikaivanaxx_(artist) ambiguous_gender bone comic dream human machine male mammal mettaton nightmare papyrus_(undertale) protagonist_(undertale) robot sans_(undertale) skeleton undertale video_games xxmileikaivanaxx_(artist) ambiguous_gender bone comic dream human machine male mammal mettaton nightmare papyrus_(undertale) protagonist_(undertale) robot skeleton undertale video_games xxmileikaivanaxx_(artist) 1girl android breasts drink female genderswap glasses indoors large_breasts looking_at_viewer mettaton mettaton-ex monochrome short_hair solo sweater translation_request undertale upper_body 2015 anthro blood burgerpants clothed clothing ddoodler digital_media_(artwork) disembodied_hand duo english_text feline fur gastropod half-closed_eyes hat human knife mammal mettaton poster shirt snail solo_focus teeth text threat undertale uniform video_games alphys annoying_dog asgore_dreemurr asriel_dreemurr burgerpants despair_(artist) dogamy dogaressa doggo flowey_(undertale) greater_dog grillby lesser_dog mad_dummy_(undertale) mettaton mettaton_ex monster_kid_(undertale) napstablook omega_flowey papyrus_(undertale) royal_guard_01_(undertale) royal_guard_02_(undertale) sans temmie toriel undertale undyne w.d._gaster ! ... 2016 ? absurd_res alphys anthro atlas-white brown_hair cellphone clothed clothing comic dialogue digital_media_(artwork) dress duo duo_focus english_text eyes_closed eyewear fire glasses group hair hi_res human inside machine male mammal mettaton monster nervous open_mouth phone protagonist_(undertale) robot scalie scared signature smile speech_bubble stage teeth text undertale video_games what comic dialogue english_text food lizard machine mettaton monster_kid popcorn reptile robot scalie television text undertale unknown_artist video_games 2016 alphys animated_skeleton anthro armor asgore_dreemurr bicobebin bone brown_hair caprine clothing detailed english_text eye_patch eyes_closed eyewear female fish footwear glasses gloves goat goggles group hair hat headphones hi_res horn human jacket lizard long_hair machine male mammal marine mettaton monster night outside papyrus_(undertale) photoshop_flowey protagonist_(undertale) red_hair reptile robot sans_(undertale) scalie scarf short_hair shoulder_pads silhouette skeleton teeth text toriel tree undead undertale undyne vehicle video_games weapon alphonse_elric alphys animated_skeleton annoying_dog_(undertale) asgore_dreemurr asriel_dreemurr bone boss_monster canine caprine chara_(undertale) dog earthbound_(series) edward_elric fish ghost goat halloween holidays human lizard lucas_(earthbound) machine magic_user mammal marine mario_bros mettaton monster_kid mr_saturn napstablook ness nintendo papyrus_(undertale) poptartart protagonist_(undertale) reptile robot sans_(undertale) scalie simple_background skeleton spiderweb spirit temmie_(undertale) toriel undead undertale undyne vampire video_games waluigi witch