Smilers are common entities that are found in the majority of levels in the backrooms,

examples of levels that contain Smilers are Level 1 and 2. 
Smilers look like a white smile made of reflective eyes and teeth  that gleam in the dark.

Very little is known about their biology since they only appear in the dark

so their creepy smile glows, but it is known that they have a black humanoid

arm to pull their victims into the dark. What happens to the victim after

being pulled into the dark it’s unknown, since the victim gets absorbed by the smiler’s

body literally after being pulled into the dark. The smilers don’t even move their mouth

to hunt prey. 
Smilers have 2 weaknesses;

Light which distracts the smiler and The Antismiler radiation gun (A spray that shoots a

weird type of water that repels the smiler away
HABITAT:

The Majority of levels,  but Especially level 2 and 3.