The Clawshroom is an Expert Mode-exclusive pet summoning item obtained from the Treasure Bag dropped by Crabulon. It summons a small mushroom crab to follow the player. If the player stands still for 5 seconds while the pet is less than 40 pixels away from them, it will mount ontop of the player's head until they move again.
- The pet will not mount on the player's head if they are wearing the Aestheticrest, Stone Pile, or True Cosmic Cone.
- Previously, the Clawshroom and the Fungal Crab were replaced by an item known as the "Mushroom Bouquet", and a pet known as the "Swearshroom" to make the pet more unique.
- This was reverted due to backlash from some people, but the Swearshroom sprites were eventually recycled for a critter of the same name.
- The Fungal Crab's sprites were originally used for a boss minion suggestion for Crabulon.
- The crab's flying sprite being in a bucket is a reference to the character Kisume from the Touhou Project series, who is known for riding in a bucket.
- The sprites were created on said character's dedicated day.