![2girls alphys animal_print annoying_dog artist_name bag blood buttons chromatic_aberration dog_print dripping endogeny extra_eyes extra_mouth glasses grey_background holding holding_bag labcoat lemon_bread melissa_yabumoto memoryhead monster monster_girl multiple_girls nervous nervous_smile outline reaper_bird shaded_face sharp_teeth simple_background snowdrake's_mother spoilers sweatdrop tail teeth undertale yellow_skin rating:s score:9 post #2241822](/cdn_image/preview/19/bf/19bf6310ab477d351fd2c10c003f01e4.jpg)
memoryhead
Monsters from Undertale.
Since they are found with the other amalgamates and also look like a collection of melted-together creatures, it is assumed that they are more of those accidents from the experiments with Determination. However, they are the only amalgamates whose component parts do not resemble anything in the game, and there is no in-game explanation for this either. This has led to several theories as to exactly what they are and where they came from.