The Pintkuu is a hostile arthropod found in the Foglands, specifically in the Otherworldly Plane biome. It is capable of burrowing below the ground similar to a Digger, kicking up particles above its location. It will spring up out of the ground to attack the player.
The mob is a sandy tan color, with a single bulbous body similar to a spider's abdomen, and a square head which lacks any visible eyes but has a gaping circular maw to bite at the player with. It has 8 legs, all situated at the front of its body to borrow and lunge out at potential prey with.
The mob hiding below the ground shields it from a large amount of attacks, but it has weaknesses. Breaking the block it is burrowed into will unearth it and stun it temporarily. Alternatively, waiting until the last second and dodging out of the way will give the player a small window to strike it while it sticks its head out of the ground. Like all other arthropods, it is vulnerable to the Bane of Arthropods enchantment.