🐾 MewGenius
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Marshmallow boss icon
MewGenius Answerbook Risk: Medium

Marshmallow Boss Guide

How to prepare, survive the opener, and beat Marshmallow safely in Mewgenics.

Best beaten by spacing, safe repositioning, and punishing after commitment.

HP: 64 MV: 3 Damage: 5 Luck: 5 The Desert

Fast answer

Read this first
Best short answer

Back up or pass with vulnerable melee units so Marshmallow cannot get a high-value Convert target. Identify whether your team can safely break Holy Shields immediately or should kite for a turn.

Biggest mistakes
  • •Letting Marshmallow charm a key frontliner and flip your own tempo against you.
  • •Failing to respect her Holy Shields and wasting early burst.
  • •Allowing your last undowned cat to be charmed, which can trigger an immediate defeat.
How you actually win
  • •Keep distance early so she cannot land Convert on an important unit.
  • •Use disposable summons or weak bodies to soak her charm attempts.
  • •Break through Holy Shields efficiently, then finish her before control snowballs.

Answerbook (how to not die)

Run killers
  • •Letting Marshmallow charm a key frontliner and flip your own tempo against you.
  • •Failing to respect her Holy Shields and wasting early burst.
  • •Allowing your last undowned cat to be charmed, which can trigger an immediate defeat.
Win conditions
  • •Keep distance early so she cannot land Convert on an important unit.
  • •Use disposable summons or weak bodies to soak her charm attempts.
  • •Break through Holy Shields efficiently, then finish her before control snowballs.
Positioning rules
  • •Do not leave valuable melee units adjacent to Marshmallow at the start of her turn.
  • •Because she can only charm one unit at a time and only in melee range, spacing and kiting are strong.
  • •If possible, keep low-value summons or expendable units closer to her than your main damage dealers.
  • •Avoid putting your final surviving cat in a position where a charm can immediately lose the fight.
Tempo plan
Opener (rounds 1–2)
  • •Back up or pass with vulnerable melee units so Marshmallow cannot get a high-value Convert target.
  • •Identify whether your team can safely break Holy Shields immediately or should kite for a turn.
Midfight (stabilize)
  • •Maintain focus fire once her defenses are down.
  • •Use weak summons, leeches, maggots, or other disposable bodies to absorb charm pressure.
  • •Do not split damage if you already have a clean chance to remove her.
Finisher (close safely)
  • •Commit burst after Holy Shields are cleared.
  • •End the fight before another charm swing or shield refresh changes the board.
Loadout hints
Reliable ranged damageDisposable summons or low-value bodiesEnough burst to punish her after Holy Shields break
Mobility to deny melee adjacencyBackline damage dealersUnits that do not mind losing a turn to reposition
Overcommitting valuable melee units into charm range on turn 1Relying on a single carry cat with no spacing supportWasting burst into Holy Shields

Source: wiki + community verification · Last tested: 2026-03-06

About Marshmallow

Marshmallow is a support-oriented mini-boss in Mewgenics found in The Desert. She uses Convert to charm adjacent units, starts with Holy Shields, and can turn your own cats against you if you let her reach melee range.

Type: Mini-Boss Area: The Desert Act 2 Role: Support / Control CharmedHoly Shields

Why players lose this fight

Fire
CharmSupportShield
Key triggers
Starts battle with 2 Holy Shields.On her first turn, attempts to use Convert on an adjacent unit.Can only charm one unit at a time.On her third turn, gains 1 Holy Shield before moving to attack normally.If the last remaining undowned party member is charmed, Marshmallow and that cat run away, causing a defeat.

Marshmallow is a support-oriented mini-boss in Mewgenics found in The Desert. She uses Convert to charm adjacent units, starts with Holy Shields, and can turn your own cats against you if you let her reach melee range. The fight is mainly defined by charm, support, shield. The most dangerous trigger identified so far is Starts battle with 2 Holy Shields..

Quick facts

Game
Mewgenics
Type
Mini-Boss
Area
The Desert
Act
Act 2
HP
64
Movement
3
Base Damage
5
Luck
5
Threat
Support / Control
Risk
Medium
Last tested
2026-03-06

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FAQ

How do you beat Marshmallow in Mewgenics?
Focus on the main loss pattern first: Letting Marshmallow charm a key frontliner and flip your own tempo against you. / Failing to respect her Holy Shields and wasting early burst.. Then follow the opener plan: Back up or pass with vulnerable melee units so Marshmallow cannot get a high-value Convert target..
What does Marshmallow do in Mewgenics?
Marshmallow is a support-oriented mini-boss in Mewgenics found in The Desert. She uses Convert to charm adjacent units, starts with Holy Shields, and can turn your own cats against you if you let her reach melee range.
Where is Marshmallow found in Mewgenics?
Marshmallow is found in The Desert, during Act 2.
What counters Marshmallow?
Bring: Reliable ranged damage Bring: Disposable summons or low-value bodies Bring: Enough burst to punish her after Holy Shields break