1boy 1other 2015 2d alternate_costume ambiguous_gender brown_hair closed_eyes digital_media duo facing_another frisk_(undertale) human humanoid knocker12 leaning_forward male monster monster_boy papyrus_(undertale) short_hair simple_background skeleton teeth undead undertale upper_body white_background

1boy 2015 2d back blue_shorts bone boots cape digital_media forest gloves holding holding_bone humanoid knocker12 male male_only monster monster_boy no_lineart papyrus_(undertale) red_boots red_cape red_gloves shorts skeleton snow snowing solo standing

1boy 2015 2d arm_support digital_media gloves holding holding_phone humanoid indian_style knocker12 listening_to_music lowres male male_only monster monster_boy musical_note orange_background outline papyrus_(undertale) phone red_gloves simple_background sitting skeleton solo teeth undead undertale

1boy 2015 2d alternate_costume collared_shirt crossed_arms digital_media glowing humanoid knocker12 male male_only monster monster_boy open_shirt papyrus_(undertale) ribs shirt simple_background skeleton sleeping solo teeth undead undertale upper_body white_background

1other 2016 2d 3boys 3girls alphys ambiguous_gender animated animated_gif anthro asgore_dreemurr beard black_eyepatch blinking blonde_hair blue_jacket blue_skin brothers brown_hair closed_eyes copyright_name digital_media dinosaur dinosaur_girl ear_fins everyone eyepatch facial_hair female fins

1other 2016 2d 3girls 4boys alphys ambiguous_gender animal_ears anthro asgore_dreemurr beard black_eyepatch blonde_hair blue_jacket blue_skin boots brothers brown_hair cape clenched_hands digital_media dinosaur dinosaur_girl droopy_ears ear_fins everyone eyepatch facial_hair female fins

1other 2015 2boys 2d ambiguous_gender arms_up black_pants blue_jacket boots brothers brown_hair cape child digital_media frisk_(undertale) full_body gloves grey_hood hands_on_own_hips hood hood_down hooded_jacket hoodie human humanoid jacket knocker12 male monster monster_boy

2016 2boys 2d animated animated_gif black_pants blue_jacket blue_shorts boots brothers cape digital_media duo forest gasterblaster gloves height_difference humanoid jacket knocker12 looping_animation male male_only monster monster_boy outdoors papyrus_(undertale) pink_slippers red_boots red_cape

1boy androgynous black_sclera blood bloody_knife bloody_weapon chara_(undertale) clenched_teeth colored_sclera comic dark_persona english_text evil_smile fang frisk_(undertale) gameplay_mechanics glowing glowing_eye highres hood hoodie knife knocker12 red_eyes sans_(undertale) shaded_face skeleton skull smile spoilers

1boy 2015 2d 2koma blush closed_eyes comic digital_media flustered gloves hand_on_own_head head_tilt humanoid knocker12 male male_only monster monster_boy papyrus_(undertale) portrait red_gloves silent_comic simple_background skeleton solo teeth undead undertale white_background

1boy 2015 2d animated animated_gif blue_jacket blue_tongue colored_tongue cropped_shoulders digital_media food hood hood_down hooded_jacket jacket knocker12 licking licking_popsicle looping_animation lowres male male_only monster monster_boy popsicle sans_(undertale) simple_background skeleton solo teeth

1boy 2015 2d animated animated_gif blue_jacket blue_tongue colored_tongue cropped_shoulders cute digital_media eating food fork holding holding_fork hood hood_down hooded_jacket jacket knocker12 looping_animation lowres male male_only monster monster_boy open_mouth pasta plate