The Pain Blob is a decorative NPC that can be found in the Sewers.
Overview
The Pain Blob appears to be a simple object at first, resembling a large purple water droplet or trash bag. However, when stabbed with the Knife effect, it will grow a small face that appears to express anguish.
They can be found when entering the Sewers from Mural World and immediately going east. The Pain Blob will be blocking one of the paths, seemingly out-of-place, and can not be moved or killed with any effects.
A weird blob that blocks the way.
Pain.
Trivia
- The Pain Blob's inclusion appears to be used to block the way to the Nopperabou Ghost, which gives the Nopperabou effect, by making the Sewers look like a looping area that is blocked on two sides.