Moldessa (/moʊlˈdɛsə/) is an enemy in Undertale, appearing throughout the Ruins only on Hard Mode. It is a stronger counterpart of Moldsmal, similar to Moldbygg.



Its body presents something like a flipped lightbulb, with a strange, flower-like creation at the top. It also has the pair of elastic, identical protrusions. Its face spins in a circle and has many different shapes, which change depending on which action is taken.

In Battle

Appears With


  • Moldessa fires bullets that travel straight down and explode into 8 smaller pellets.
  • Moldessa fires bullets that travel in a zigzag formation and do not explode.


  • Moldessas can be spared by fixing their faces.
  • If the protagonist lies down, all monsters other than Moldessas will become spareable.


  • Shh...
  • Hsh...
  • Krr...
  • (slime sounds)

Flavor Text

  • Can't decide on a face. Can't see friend from foe. [Check]
  • You tripped over some Moldessas. [Encounter with another Moldessa]
  • A line of Moldessas block the path. [Encounter with two other Moldessas]
  • Moldessa tries to make its face look like a movie-star's, but it shifts apart. [Neutral]
  • Moldessa hides behind its ears. ...arms? [Neutral]
  • Smells like twelve-week-old gummy bears. [Neutral]
  • Moldessa's face looks... happy? [Meeting spare condition]
  • You encourage Moldessa to try a new look. Its face shifts... [Switch]
  • You adjust Moldessa's face. It seems to be happy with its new look. [Fix]
  • You lie down and rest. Moldessa tucks you in with a blanket of moss. [Lie Down]
  • While you were sleeping, the other monsters get bored. [Lie Down]
  • Moldessa's face falls apart. [Low HP]


  • Moldessa's name comes in part from the word mold, which is also in Moldsmal's name.
  • Moldessa's ears resemble the Dreemurr royal family's.

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