3:4 alternate_universe animated_skeleton bone clothing gaster_blaster hi_res humanoid male not_furry papyrus_(undertale) rene-elric sad scarf skeleton solo third-party_edit undead underswap undertale undertale_(series)
2015 absurd_res animated_skeleton anthro aquatic bone boss_monster_(undertale) bovid caprine female fish flower flowey_the_flower frisk_(undertale) fur gaster_blaster group hair hi_res huge_filesize human long_image machine male mammal melee_weapon mettaton mettaton_neo mykiio papyrus_(undertale) plant polearm red_eyes red_hair robot sans_(undertale) skeleton spear tall_image toriel undead undertale undertale_(series) undyne undyne_the_undying weapon white_body white_fur
2015 anthro arachnid arthropod bodily_fluids bread child clothed clothing comic container cup dialogue digital_media_(artwork) duo_focus english_text female food frisk_(undertale) gaster greyscale group hair havesomemoore hi_res human humor mammal monochrome muffet spider tea_cup teapot text trio undertale undertale_(series) vomiting young
2015 alphys animated animated_gif animated_skeleton anthro aquatic armless bone boss_monster_(undertale) bovid caprine clothing english_text fish gaster_blaster group hi_res hoodie imahpixel lizard looking_at_viewer mammal monster_kid papyrus_(undertale) reptile sans_(undertale) scalie short_playtime skeleton solo_focus text topwear toriel undead undertale undertale_(series) undyne
2015 5:4 ambiguous_gender animal_humanoid animated_skeleton anthro arachnid arachnid_humanoid armless arthropod arthropod_humanoid bone canid canine canis clothing dialogue digital_media_(artwork) domestic_dog elemental_creature english_text female fire fire_creature frisk_(undertale) gaster grillby group human humanoid kgn-000_(artist) lesser_dog male mammal monster_kid muffet one_eye_closed skeleton spider_humanoid text undead undertale undertale_(series) wink young
2015 203y anal anthro asgore_dreemurr bodily_fluids boss_monster_(undertale) bovid caprine clenched_teeth digital_media_(artwork) duo eyes_closed from_front_position fur gaster hair horn humanoid humanoid_on_anthro larger_male lying male male/male male_penetrated male_penetrating male_penetrating_male mammal missionary_position moan monochrome motion_lines nude on_back open_mouth penetration sex side_view size_difference sketch smaller_male sweat teeth undertale undertale_(series) watermark
2015 :3 accessory animated_skeleton anthro black_and_white black_sclera bone canid canine canis cosplay dio_brando doctrin-zhivago domestic_dog duo female gaster headband jojo's_bizarre_adventure male mammal meme monochrome one_eye_closed open_mouth parody skeleton smile stand_(jjba) stardust_crusaders tem temmie_(undertale) the_world_(jjba) undead undertale undertale_(series)
2015 animated_skeleton bone clothing comic death disintegration english_text footwear frisk_(undertale) gaster_blaster glowing glowing_eyes hi_res hoodie human mammal nonbinary_(lore) nonbinary_death sans_(undertale) shoes skeleton slippers squidbunny_(artist) text topwear undead undertale undertale_(series)
animated_skeleton bone clothing english_text gaster_blaster glowing glowing_eyes hoodie not_furry sans_(undertale) skeleton solo text topwear undead undertale undertale_(series) unknown_artist
1:1 animated_skeleton bone gaster kevin_austin male monochrome not_furry simple_background skeleton solo undead undertale undertale_(series) white_background
abstract_background alternate_universe animated_skeleton asian_clothing bone clothing duo east_asian_clothing frisk_(undertale) gaster_blaster hanbok human humanoid joseontale korean_clothing mammal ms1sharklee not_furry sans_(undertale) skeleton undead undertale undertale_(series)
2015 2:3 animated_skeleton bone family father_(lore) father_and_child_(lore) father_and_son_(lore) foxtragic gaster glowing glowing_eyes group happy hi_res melee_weapon papyrus_(undertale) parent_(lore) parent_and_child_(lore) parent_and_son_(lore) sans_(undertale) skeleton smile son_(lore) sword undead undertale undertale_(series) weapon
2015 absurd_res animated_skeleton black_bars bone character_cipher clothed clothing colored comic comic_sans dialogue digital_media_(artwork) duo english_text foxtragic gaster glowing glowing_eyes hi_res inside letterbox long_image male not_furry papyrus_(font) papyrus_(undertale) sans_(undertale) skeleton smile snow speech_bubble tall_image teeth text undead undertale undertale_(series) wingdings_text winter
2015 absurd_res animated_skeleton bone character_cipher clothed clothing comic comic_sans dialogue digital_media_(artwork) duo english_text foxtragic gaster glowing glowing_eyes hi_res inside long_image male not_furry papyrus_(font) papyrus_(undertale) sans_(undertale) skeleton smile tall_image teeth text undead undertale undertale_(series) wingdings_text
1:1 2016 animated_skeleton black_blood blood blush bodily_fluids bone clothing colored_blood digital_drawing_(artwork) digital_media_(artwork) duo g-clone gaster heart_symbol hi_res male male/male nightmare_fuel not_furry nude piippujalka saliva sans_(undertale) skeleton suit sweat tears text undead undertale undertale_(series) unusual_blood unusual_bodily_fluids why
anal anal_penetration anthro asgore_dreemurr beard blonde_hair blush bodily_fluids boss_monster_(undertale) bottomless bottomless_male bovid caprine character_cipher clothed clothing dialogue digital_media_(artwork) duo erection eyes_closed facial_hair gaster genitals hair hi_res horn larger_male male male/male male_penetrated male_penetrating male_penetrating_male mammal mature_anthro mature_male penetration penis sex size_difference smaller_male sweat text undertale undertale_(series) unknown_artist wingdings_text
2015 against_surface against_wall animated_skeleton anthro asgore_dreemurr beard blonde_hair blush bone boss_monster_(undertale) bovid caprine clothed clothing duo facial_hair fur gaster hair hi_res horn humanoid humanoid_on_anthro larger_male long_hair male male/male mammal mature_anthro mature_male pictographics pornojalka size_difference skeleton smaller_male undead undertale undertale_(series) white_body white_fur
alternate_universe anthro big_breasts bodily_fluids boss_monster_(undertale) bovid breasts caprine comic cum cum_drip cum_in_mouth cum_inside cum_on_breasts cum_on_face dripping english_text exclamation_point female frisk_(undertale) frisky_(under(her)tail) gaster genital_fluids genitals group half-erect heart_symbol huge_breasts human larger_female leaking_cum male mammal mature_anthro mature_female monochrome mother_(lore) nipples parent_(lore) penis size_difference sleeping smaller_male sound_effects text thewill toriel tutori under(her)tail undertale undertale_(series) vowelless vowelless_sound_effect zzz
animated_skeleton anthro anzhyra aquatic armor bone border breasts brother_(lore) brothers_(lore) cape clothed clothing cosplay crossover drill eye_patch eyewear female fingerless_gloves fish gaster gesture gloves goggles group hair hand_gesture handwear hi_res jacket male melee_weapon moon non-mammal_breasts papyrus_(undertale) pointing polearm red_hair sans_(undertale) sharp_teeth sibling_(lore) skeleton smile snow spear sunglasses teeth tengen_toppa_gurren_lagann topwear undead undertale undertale_(series) undyne weapon white_border
animated_skeleton better_version_at_source bone chaotichero character_cipher comic dialogue duo english_text gaster gesture handshake hi_res male not_furry prank sans_(undertale) skeleton text undead undertale undertale_(series) whoopee_cushion wingdings_text
absolutely_everyone aircraft airplane alphys amalgamate anatid animated_skeleton anseriform anthro arachnid armless arthropod asgore_dreemurr avian beard bird blonde_hair blush bone boss_monster_(undertale) bovid building canid canine canis cape caprine christmas christmas_tree clothing doggo_(undertale) domestic_dog door duck electronics endogeny everyman eyes_closed facial_hair female fire fireball flower flowey_the_flower fofufofu frisk_(undertale) fur gaster gaster_follower_1 gaster_follower_2 gaster_follower_3 ghost gloves goner_kid greater_dog green_sclera group gyftrot hair handwear heart_symbol holidays horn house human icecap jerry_(undertale) knife knight_knight large_group leaf lesser_dog long_ears loox mad_dummy madjick male mammal memoryhead mettaton mettaton_ex moldbygg monitor monster_kid muffet napstablook nicecream_man onionsan papyrus_(undertale) photoshop_flowey plant pyrope reaper_bird river_person_(undertale) sans_(undertale) shyren sign skeleton snow snowdrake snowdrake's_mother snowman snowman_(species) snowman_(undertale) spider spirit toriel tree tsunderplane undead undertale undertale_(series) undyne vegetoid vehicle vulkin water whimsun white_body white_fur woshua
character_cipher charlie_(don't_starve) creepy crossover dithering don't_starve english_text female gaster hi_res hole_in_hand humanoid klei_entertainment shadow_creature solo spot_color text tiafu_(artist) translation_within_image translucent_text unavailable_at_source undertale undertale_(series) wingdings_text
1:1 alternate_species ambiguous_gender canid canine crossover eevee english_text eyes_closed feral floating_hands frisk_(undertale) gaster_blaster generation_1_pokemon gengar group haunter male mammal nintendo pokemon pokemon_(species) rebornica red_sclera sans_(undertale) text undertale undertale_(series)
2016 absurd_res animated_skeleton anthro big_breasts bikini bone breasts clothing confusion curvy_figure dated digital_media_(artwork) elemental_creature embarrassed english_text female flora_fauna flower flower_creature flowey_the_flower gaster_blaster glitch group heart_symbol hi_res male navel nipple_outline plant sans_(undertale) size_difference skeleton smile swimwear text thick_thighs two-piece_swimsuit undead undertale undertale_(series) voluptuous walter_sache wide_hips
5:6 absurd_res alpha_channel angry animated_skeleton anthro big_breasts big_butt blush bone breasts butt clothed clothing curvy_figure dated elemental_creature female flora_fauna flowey_the_flower frown g-string gaster_blaster group hi_res huge_breasts humanoid macro monster navel nipples panties plant sans_(undertale) skeleton slightly_chubby smile thick_thighs topless undead undertale undertale_(series) underwear voluptuous walter_sache what wide_hips
2016 absurd_res animated_skeleton anthro big_breasts big_butt bikini bodily_fluids bone breasts butt clothed clothing dated female front_view gaster_blaster group heart_symbol hi_res legs_for_days looking_at_viewer magic monster panties panties_down partially_clothed rear_view sans_(undertale) skeleton smile sweat swimwear text tongue tongue_out topless torn_clothing two-piece_swimsuit undead undertale undertale_(series) underwear underwear_down walter_sache
16:9 2016 animated_skeleton bone chara_(undertale) clothing duo frisk_(undertale) gaster_blaster hoodie human knife light lol_comments male mammal not_furry pdubbsquared sans_(undertale) skeleton smile soul topwear undead undertale undertale_(series) wallpaper widescreen
2016 animated animated_gif animated_skeleton bone clothing digital_media_(artwork) english_text gaster_blaster hoodie nabuco88 not_furry sans_(undertale) scarf short_playtime skeleton solo text topwear unavailable_at_source undead undertale undertale_(series)
ambiguous_gender animated_skeleton bone clothing faceless gaster gaster_follower_1 gaster_follower_2 gaster_follower_3 goner_kid grey_background group male mamaito monochrome monster monster_kid multiple_persona pattern_clothing pattern_shirt pattern_topwear shirt simple_background skeleton striped_clothing striped_shirt striped_topwear stripes topwear undead undertale undertale_(series)
2015 animated animated_gif animated_skeleton bone clothed clothing crossed_legs epilepsy_warning gaster glitch krwawnik_(artist) male mandala not_furry shirt short_playtime sign_language sitting skeleton solo topwear undead undertale undertale_(series)
2015 5:8 absurd_res alternate_universe ambiguous_gender ambiguous_human animated_skeleton bandage bone character_cipher clothed clothing dialogue digital_media_(artwork) duo english_text frisk_(undertale) gaster hi_res human male mammal not_furry raining shirt skeleton speech_bubble tan_body tan_skin text thescarred_(artist) topwear translation_within_image translucent_text umbrella undead underswap undertale undertale_(series) wingdings_text yellow_body yellow_skin young young_human
2015 absurd_res animated_skeleton bone character_cipher clothed clothing comic comic_sans dialogue digital_media_(artwork) english_text food gaster hi_res hoodie long_image male not_furry sans_(undertale) shirt skeleton speech_bubble tall_image text thescarred_(artist) topwear translated undead undertale undertale_(series) wingdings_text
2015 absurd_res alternate_universe animated_skeleton bone character_cipher clothed clothing comic dialogue digital_media_(artwork) english_text gaster hi_res interrobang long_image male not_furry oversized_sleeves pattern_clothing pattern_sweater pattern_topwear pillarbox skeleton solo speech_bubble striped_clothing striped_sweater striped_topwear stripes sweater text thescarred_(artist) topwear translation_within_image translucent_text undead underswap undertale undertale_(series) white_body wide_image wingdings_text young
2015 absurd_res animated_skeleton blush blush_lines bone character_cipher clothed clothing comic digital_media_(artwork) english_text frisk_(undertale) gaster grey_background heart_symbol hi_res human long_image male mammal not_furry one_eye_closed question_mark shirt simple_background skeleton tall_image tan_body tan_skin teeth text thescarred_(artist) tilde_after_text topwear translation_within_image translucent_text undead undertale undertale_(series) wingdings_text wink
2015 absurd_res animated_skeleton bone character_cipher clothed clothing digital_media_(artwork) english_text gaster glitch hi_res male monochrome not_furry shirt skeleton text thescarred_(artist) topwear translation_within_image translucent_text undead undertale undertale_(series) wingdings_text
alternate_universe duo floating_head frisk_(undertale) frown gaster hair human low_res mammal outertale signature space spacesuit star undertale undertale_(series) unknown_artist
animated_skeleton artificial_intelligence beverage blush bodily_fluids bone container crossover cup digital_creature digital_media_(artwork) duo_focus food furniture gaster glitch glitch_creature glitch_pokemon gradient_background grey_background group holding_beverage holding_container holding_cup holding_object holding_tea_cup lamp madcookiefighter male missingno. nintendo not_furry open_mouth open_smile pokemon pokemon_(species) simple_background skeleton smile sweat table tea tea_cup tea_party uboa undead undertale undertale_(series) yume_nikki
2016 3:2 absurd_res alpha_channel angry animated_skeleton artist_name bedroom_eyes blush bone cape clothing dated dialogue ellipsis embarrassed english_text flowey_the_flower food furniture gaster_blaster group half-closed_eyes heart_symbol hi_res narrowed_eyes papyrus_(undertale) pasta ragnarok_(walter_sache) sans_(undertale) seductive skeleton smile smirk spaghetti speech_bubble table text tongue undead undertale undertale_(series) walter_sache
1:1 alternate_universe animated_skeleton bone clothed clothing fan_character fedora footwear fully_clothed gangster gaster gloves group gun handgun handwear hat headgear headwear hi_res jacket kiatokid mafia male mob_boss not_furry papyrus_(undertale) ranged_weapon revolver sans_(undertale) scarf shoes skeleton smile submachine_gun suit thompson_gun topwear undead undermafia undertale undertale_(series) weapon
accessory alternate_universe animated_skeleton bone clothing determined fan_character fedora frisk_(undertale) gangster gaster group hat headgear headwear human jacket kiatokid mafia male mammal mob_boss necktie not_furry papyrus_(undertale) sans_(undertale) scarf skeleton smile teeth topwear undead undermafia undertale undertale_(series)
aftertale animated_skeleton bone clothed clothing comic counter dialogue ellipsis english_text frisk_(undertale) gaster_blaster hair human humanoid loverofpiggies mammal not_furry sans_(undertale) skeleton smile teeth text undead undertale undertale_(series)
aftertale animated_skeleton attack bone bottle clothed clothing comic container counter dialogue duo_focus english_text food frisk_(undertale) gaster_blaster group hair human ketchup loverofpiggies mammal not_furry sans_(undertale) skeleton smile speech_bubble teeth text traditional_media_(artwork) undead undertale undertale_(series)
ambiguous_gender animated_skeleton bone caneggy clothing creepy english_text frisk_(undertale) gaster gaster_follower_3 group hi_res human male mammal monochrome skeleton text undead undertale undertale_(series)
2015 2016 animated_skeleton bone character_cipher colored comic digital_media_(artwork) english_text foxtragic gaster glowing glowing_eyes hi_res holiday_message holidays long_image new_year not_furry papyrus_(undertale) sans_(undertale) skeleton tall_image text undead undertale undertale_(series) wingdings_text
2016 absurd_res animated_skeleton ball bedroom black_bars bone clothed clothing comic day digital_media_(artwork) duo english_text foxtragic gaster glowing glowing_eyes hi_res humanoid inside letterbox long_image magic male not_furry papyrus_(undertale) sans_(undertale) skeleton tall_image text undead undertale undertale_(series)
2016 angstrom animated_skeleton big_breasts bikini blue_background blue_eyes blush bone breasts cleavage clothed clothing dated digital_media_(artwork) female gaster_blaster glitch humanoid not_furry simple_background skeleton skull solo swimwear two-piece_swimsuit undead undertale undertale_(series)
alternate_universe animated_skeleton asian_clothing black_eyes bone clothing duo east_asian_clothing elemental_creature elemental_humanoid fire fire_creature fire_humanoid flask gaster grillby hanbok hat headgear headwear hi_res humanoid joseontale korean_clothing korean_text male mouthless ms1sharklee not_furry simple_background skeleton smile text undead undertale undertale_(series)
2015 aaron_(undertale) absolutely_everyone absurd_res alligator alligatorid alphys amalgamate ambiguous_gender amphibian anatid animal_humanoid animated_skeleton annoying_dog_(undertale) anseriform anthro antlers aquatic aquatic_humanoid arachnid armless armor arthropod asgore_dreemurr asriel_dreemurr asriel_dreemurr_(god_form) astigmatism avian bear beard bird black_hair blush body_horror bone boss_monster_(undertale) bovid bovine bratty_(undertale) burgerpants canid canine canis caprine catty_cattenheimer chara_(undertale) clothed clothing coat creepy crocodilian crossdressing deer digital_media_(artwork) dogamy dogaressa doggo_(undertale) domestic_cat domestic_dog dress dress_lion_(undertale) duck elemental_creature endogeny english_text equid equine eyes_closed eyewear faceless facial_hair faun_(undertale) felid feline felis female femboy final_froggit fire fire_creature fish fish_humanoid flora_fauna flower flowey_the_flower frisk_(undertale) frog froggit fur gaster gaster_follower_1 gaster_follower_2 gaster_follower_3 gerson ghost glasses goat goner_kid goo_creature greater_dog grillby group gyftrot hair hair_over_eye hat headgear headwear heart_symbol heats_flamesman hi_res horn horse human humanoid hybrid ice ice_wolf_(undertale) icecap jerry_(undertale) knight knight_knight lab_coat lagomorph large_group lava lemon_bread leporid lesser_dog lion lizard long_image loox machine mad_dummy madjick male mammal melee_weapon melting memoryhead mettaton mettaton_ex moldbygg moldsmal monochrome monster_kid muffet multi_eye multi_limb muscular musical_note musical_symbol napstablook new_world_deer nicecream_man one_eye_obstructed onionsan pantherine papyrus_(undertale) pecs photoshop_flowey piercing pigtails plant polearm pyrope qc_(undertale) rabbit raikissu reaper_bird reindeer reptile rg01_(undertale) rg02_(undertale) river_person_(undertale) robot sans_(undertale) scalie shyren singing siren skeleton slime smile smoke snowdrake snowdrake's_mother so_sorry_(character) spear spider spirit sunglasses symbol tall_image teeth tem temmie_(undertale) text text_on_clothing text_on_hat text_on_headgear text_on_headwear topwear toriel tsunderplane turtle undead undertale undertale_(series) undyne vegetoid volcano vulkin warrior weapon whimsalot whimsun white_body white_fur wizard_hat wolf woshua
alternate_universe animated_skeleton bone border clothed clothing gaster hat headgear headwear humanoid kiatokid male not_furry simple_background skeleton solo suit sweater topwear trilby turtleneck undead undermafia undertale undertale_(series) white_border
:3 accessory alternate_universe animated_skeleton bone clothed clothing fedora gangster gaster gloves group gun handgun handwear hat headgear headwear hi_res kiatokid mafia male mob_boss necktie not_furry papyrus_(undertale) ranged_weapon rifle sans_(undertale) scarf skeleton smile sniper sniper_rifle suit undead undermafia undertale undertale_(series) weapon
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