Memoryheads are a trio of Amalgamates found in a sink in the True Lab. During the battle, they have the ability to put a Bad Memory in the inventory.

In Battle


Memory head attack

Memoryhead attacking the protagonist.

  • Dots appear on the screen, which soon balloon into wiggling faces. The placement of these dots is random, sometimes even outside of the Bullet Board. According to the textures' names, the heads are called "Freak bullets".


  • Memoryhead can be spared by using CELL from the ACT menu, then refusing one of them.


Before using CELL in the ACT menu, Memoryheads will "play" dial-up noises as dialogue before attacking. The following text is only used after the CELL action is used.
  • Come join the fun. [CELL, Neutral]
  • It's a real get together. [Neutral]
  • Lorem ipsum docet [Neutral]
  • Become one of us! [Neutral]
  • Be seeing you. [Neutral]
  • You'll be with us shortly. [Join]
  • Just a moment. [Join]
  • Then, hold still. [Join]
  • That's a shame. [Refuse]
  • Oh well. [Refuse]

Flavor Text

  • No data available. [Check]
  • ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ drew near! [Encounter]
  • Smells like batteries. [Neutral]
  • But nobody came. [Neutral]
  • You take out your CELL PHONE. You can hear voices through the receiver...! [CELL]
  • AT - <your listed AT + 10> DF - <your listed DF + 10> [STAT]
  • The enemy put a piece of itself in your inventory. [ITEM]
  • Seems like it doesn't care anymore. [Select CELL & Refuse]


  • Unlike the other amalgamates, Memoryheads do not appear to be composed of any known monster seen throughout the game.
    • Its odd manner of continuously glitching and speaking in errors may suggest that it is not even real. The flavor text "Smells like batteries," how it normally talks only when using the CELL option, and how it produces Dial-Up sounds may suggest it lives in or is connected in some way to an electronic device.
  • Their composition (six faces in an oval, a bone, and a nondescript wisp) resembles a human brain in shape.
  • Their overall shape and the way they shift and phase resemble the appearance of Giygas during the final battle of EarthBound. The battle music use of said game's instruments (namely Giygas's breathing and the Cave of the Past's samples) and the line "But nobody came." are further references.
  • When attacked, it absorbs the blow, gaining a significant, overflowing amount of HP that actually stretches the health bar off the screen.

Player attacking Memoryhead.

  • When attacking the protagonist, Memoryheads use bullets that resemble the grin of a mysterious man that the protagonist can encounter.
  • Memoryhead appears briefly in the debug room "room_monsteralign_test."
  • The flavor text "(do)lorem ipsum docet" roughly translates as "Pain teaches," which is a reference to the placeholder text "Lorem Ipsum."
  • Memoryhead, along with Reaper Bird and the unknown figure(s), does not appear in the epilogue.
  • The Memoryheads speaking for the first time is a reference to the Commodore Amiga "Boxes" App.

Main Characters Flowey • Toriel • Sans • Papyrus • Undyne • Alphys • Mettaton • Asgore Dreemurr • Frisk • Chara
Ruins Enemies Dummy • Froggit • Whimsun • Moldsmal • Loox • Vegetoid • Migosp • Napstablook
Snowdin Enemies Snowdrake • Chilldrake • Ice Cap • Gyftrot • Doggo
Dogamy and Dogaressa • Lesser Dog • Greater Dog • Jerry • Glyde
Waterfall Enemies Aaron • Moldbygg • Woshua • Temmie • Mad Dummy • Shyren
Hotland Enemies Vulkin • Tsunderplane • Pyrope • Muffet • Royal Guards • So Sorry
CORE Enemies Final Froggit • Whimsalot • Astigmatism • Madjick • Knight Knight
Amalgamates Memoryhead • Endogeny • Reaper Bird • Lemon Bread • Snowdrake's Mother
Hard Mode-only enemies Parsnik • Moldessa • Migospel
Vendors Nice Cream Guy • Snowdin Shopkeeper • Gerson • Tem Shop • Bratty and Catty • Burgerpants
Other Characters NPCs • Monster Kid • Annoying Dog • River Person • Eight Humans • Asriel Dreemurr
W. D. Gaster • Lost Souls