Mega Frost Mystery

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This article is about Mega Frost Mystery. You may be looking for other uses of Mega, other uses of Frost or Mystery enemies.

Mega Frost Mystery
Mode Appearance	Frost
Wave Debut	31
Statistics
Base Health	3,500 (Frost) 600 (Sandbox)
Speed	Above Average (4)
Cash Given	$1,050 every 50% health
Hidden?	No
Flying?	No
Ghost?	No
Lead?	No
Attributes	Stun Immune
Ability
Ability	Icebreaker - Upon death, spawns five enemies.

I wonder how they got like that? They must be absorbing whatever is in their realm to cause such large mutations!

―Professor V on Wave 31 (Frost)

Description

The Mega Frost Mystery is a summoner enemy that appears in the Frost mode. It has a decent amount of health and above average speed. When killed, it will summon five random enemies.

Logbook Description

"The Frost Mystery is considered one of the most terrifying creatures in the Frost Realm. It has an exoskeleton made of tough solid ice, while its insides contain water that cannot be frozen. According to legend, these beings are created from those who fall through frozen lakes and never resurface. The shadowy figure visible within is believed to be one of these unfortunate souls. It releases frost enemies with modifiers upon death."

Appearance

The Mega Frost Mystery is an entity with an exoskeleton made entirely out of tough, solid ice filled with unfreezable water. Inside its torso, it contains a shadowy figure in it, which has an entirely white body.

Enemies Spawned

The Mega Frost Mystery summons five random enemies from a set list, all with their own chances of being chosen. It can summon the following enemies:

• Yeti (27.27% chance, 0.5 delay)
• Packed Ice (27.27% chance, 0.7 delay)
• Blizzard Wizard (18.18% chance, 0.8 delay)
• Frostbane (18.18% chance, 0.8 delay)

Strategy

• Towers with good DPS, like the Accelerator, Turret, Ranger and Pursuit are recommended against this.
  • AOE towers like the Rocketeer or Mortar can also be useful at clearing out multiple of them at once.

Gallery

Corpse Variants

• 
  Second Corpse variant, current version variant (3 December 2025 – Present)

Promotional Videos

• 
  Mega Frost Mystery on a promotional video.

Miscellaneous

• 
  Mega Frost Mystery on its bugged Index icon.

Trivia

• The Mega Frost Mystery's model was originally used by the Frost Mystery during the Operation I.C.E Event.
• The Mega Frost Mystery is unaffected by enemy appearance modifiers, such as Talk Like a Pirate Day.

Update History

• 3 December 2025 - v1.82.0
  • Mega Frost Mystery added.
  • Bug: Mega Frost Mystery has a broken icon.
  • Bug: Mega Frost Mystery's model does not load in the Index.
• 19 December 2025 - v1.82.2a
  • Bugfix: Mega Frost Mystery's model now loads in the Index.
• 28 January 2026 - v1.84.0
  • Health decreased from 1,000 to 600 in Sandbox mode.
  • Speed increased from Very Fast (8) to Swift (10).
  • Cash given decreased from $2,250 to $1,500 on death.
  • Icebreaker ability changed.
    • Now summons Crying Angel with a 37.5% chance and Snow Golem with a 12.5% chance.
    • No longer summons Permafrost, Cold Mist or Frost Wraith.
    • Enemies now always receive the Stun Immunity instead of the Freeze Immunity 50% of the time, Health Regen 35% of the time and Aggro 15% of the time.
• 28 August 2026 - v2.8.0
  • Speed decreased from Swift (10) to Above Average (4).
  • Stun Immunity added.
  • Icebreaker ability changed.
    • Now summons the Yeti with a 27.27% chance and 0.5 delay, Packed Ice with a 27.27% chance and 0.7 delay, Blizzard Wizard with an 18.18% chance and 0.8 delay and Frostbane with an 18.18% chance and 0.8 delay.
    • No longer summons the Snow Minion, Crying Angel and Snow Golem.
    • No longer gives summoned enemies Stun Immunity.
  • Size increased.

Frost Mode
Previous Debut	Current Debut	Next Debut
Deep Freeze, Shivergeist, & Frost Mage Wave 30	Mega Frost Mystery Wave 31	Frost Necromancer Wave 32