Bug is quiet, placid, and observant. He seems aloof, but mostly just has trouble articulating his thoughts and speaking. He doesn't like tv or video games (with the exception of nature documentaries and kaiju movies), and dislikes bright lights or harsh noises in general. He likes small and cute things, like the stickers on his helmet. He is aware, on some level, that his "human" form isn't very good and that he comes across as unsettling to others, and tries to make himself smaller and less threatening because of that.

He works as a bouncer/doorman for a small bar called "Mushrooms & Roses". He takes his job very seriously, although it isn't really that important. He lives in a small room above the bar with a mattress on the floor and a chair with no table.