Known as the FOREST PLAYGROUND's resident bully, BOSS appears to enjoy harassing others for his own amusement. He also is shown to be rather rough towards those he interacts with. This is notable with his idea of hide-and-seek involving body-slamming, which explains why he was banned from the playground by BERLY.

Despite his negative traits, he is mostly shown to be a caring individual despite being known as a local bully for the playground residents. It's also mentioned that although he used BASIL as a hostage, BOSS made sure the young boy wasn't injured during his fight with party. On the top of that, BOSS expresses concern over BASIL's wellbeing when the latter disappears throughout the game

BOSS eventually reflects on his previous actions, and decides to turn over a new leaf by creating the BOSS RUSH attraction inside of HUMPHREY for OMORI and friends to challenge. He even cheers on the party and congratulates them whenever they earn a trophy for his attraction.

Despite BOSS's large stature, he should sound like a young child.

BOSS's REAL WORLD equivalent is CREEPY GUY, who will not be voiced for this project.