Antagonist LORE:

ROT(broken):another dimension of orange boy, kidnapped and experimented by vil turning him a dangerous zombie making him invincible and very fast runner,it doesn't effected people turning them into zombies instead it devours anything he can.

Vil(pure evil):vil is an orphan and highly intelligent wants to be a greatest villain of all and completely insane Over a one achievement, turning him into a mad scientist after several failures making machines and experiment until he kidnaps orange boy and his life change everything.

Pixel man(pure evil):everything he touched turns into pixels and can literally makes anything he want and hates everyone for making him "⬜⬜⬜⬜⬜⬜⬜⬜" in the first place,sick and tired all of this hatred against people who stand on his way,vil helped him making him stronger than ever.

Honorable mention:

Vil is a silly man and goof around all the time

Rot only eats fruits,vegetables and objects

Pixel man literally hates himself for being existing