He is only attracted to dead men, hence his attraction to 0119. Because 0119 is already dating 0114, and 0114 eats gum, 0021 has declared himself 0114's rival.
He is a raging homosexual.
has lots of boyfriends.
very into art.
He sometimes dresses like Princess Bubblegum to make himself feel better.
He is Gender Fluid and has been known to like the makeups!
He loves baking.
Can change colors depending on his mood
Wants to kill everybody in the world
he is the most cunningly evil of them all, due to his suspiciously simple color scheme. the only person he can't imagine killing is 0022, his favorite and only blood relation.