Shower curtain man
The shower curtain man[note 1] is a minor character in Undertale. They appear inside the shower in the True Lab.
The shower curtain man appears to be a silhouetted Amalgamate with a slender body and an ovular head, making a spoon-like shape. They bear a resemblance to the watching man.
The shower curtain man is seen swaying to the left and right in the True Lab's shower. The creature sways progressively faster as the protagonist gets closer, with the latter moving slower than usual as they approach the Amalgamate. Opening the shower causes the Amalgamate to vanish before they are seen behind the curtain. In their place is the Green Key that the protagonist needs in order to progress through the True Lab.
In the 10th Anniversary Stream, Manners takes the place of the shower curtain man and is situated to the left of the Green Key. They audibly say, "You should knock" before sliding away to the left.
- ↑ Internally referred to as
spr_showercurtain_manin the game files, but this character is not named in game.