Brain Rot

Brain Rot

2024 • 2026

Sandbox Only Content

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Brain Rot was previously removed on the 8th of April 2024, though it has been made available through the Sandbox mode later.
It is not accessible anywhere else in the game. This page will attempt to include information about both the version before removal and its re-added version.

"dop dop yes yes"

―In-Game Description

Description

Brain Rot, internally referred to as MemeMode, is a modifier originally available in Easy mode. It was activated by typing "dop dop yes yes" in chat on Wave 0, after the mode vote ended but before Wave 1 started. This would change the current map to Headache Headquarters and replace most enemies with toilet variants. This, however, did not remove any modifiers from the previous map, such as All Paths. Currently, it is only available through Sandbox mode.

Effects

When active, the Brain Rot modifier replaces the following modern variants of enemies with these variants, some of which were not possible to see in gameplay when it originally released:

• The Toilet replaces the Normal and Abnormal.
• The Streamer replaces the Speedy and Quick.
• The Chad replaces the Slow and Heavy.
• The Metal Toilet replaces the Normal Boss.
• The Ninja Toilet replaces the Hidden.
• The Png Bot2 replaces the Breaker2.
  • The Png Bot2 also spawned Png Bot upon death.
• The Brick Man replaces the Skeleton.
• The Armored Toilet replaces the Armored.
• The Megatron Toilet replaces the Slow Boss.
• The Pro Streamer replaces the Hidden Boss.
• The Arrow replaces the Bolt.
• The Png Bot4 replaces the Breaker4.
  • The Png Bot4 also spawned Png Bot3 upon death.
• The Toilet Boss replaces the Grave Digger.

Additionally, the Necromancer enemy had its health increased from 500 to 1,200, though this no longer happens.

Activating it makes the screen become dark briefly, plays a loud fart sound, makes the message "The brain rot has begun." appear on the screen and then makes the Skibidi track play.

Trivia

• The Brain Rot modifier is the first modifier to replace enemies that have hidden immunity with new enemies.

Update History

• 1 April 2024 - v1.17.2
  • Brain Rot added.
  • Bug: Brain Rot is disabled upon restarting.
• 1 April 2024 - v1.17.2a
  • Bugfix: Brain Rot is no longer disabled upon restarting.
• 8 April 2024 - v1.18.0b
  • Brain Rot removed.
• 16 December 2024 - v1.46.0
  • Brainrot re-added, exclusively appearing in Sandbox mode.
  • No longer changes health of the Necromancer.
  • Bug: Activation message no longer appears.
  • Bug: No longer changes current track to Skibidi.
• 15 January 2025 - v1.49.0
  • Bug: Activation message appears a second time when a different modifier is activated or toggled.
  • Bugfix: Activation message now appears.
  • Bugfix: Now changes the current music track to Skibidi on activation.
• 1 April 2026 - v1.86.5a
  • Bug: Brain Rot is disabled upon reviving.