Oops all slimes!

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This article is about Oops all slimes!. You may be looking for Oops! All slimes! challenge.

Sandbox Only Content

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Oops all slimes! was previously removed on the 24th of September 2025, 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.

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 <title source="title1"><default>Oops all slimes!</default></title>

<image source="image1"></image> <label>Affects</label> <label>Active In</label> <label>Available in Sandbox?</label> <format>✔ Yes</format> <label>Rewards Increase</label> <group collapse="closed"> <header>Music</header>

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"All enemies have Slime."

―In-Game Description

Description

Oops all slimes! is a modifier that only appears in the Oops! All slimes! challenge. It gives the Slime attribute to all enemies. To compensate, starting cash is increased, and early waves spawn less enemies than usual.

Effects

The main change in this challenge is all enemies are given the Slime attribute, meaning all enemies will spawn a Slime upon death.

Trivia

• The title is a reference to the oops! All berries cereal.
• This is the only the modifier that does not have the first letter of each word capitalized.

Update History

• 21 June 2024 - v1.25.0
  • Oops all slimes! added.
• 24 September 2025 - v1.75.0
  • Oops all slimes! can now be exclusively activated in Sandbox mode through Oops! All slimes! challenge.