Vengeful Doodlebob, a Japanese demon. (+1% of damage for each drop of ink, can summon minions by drawing them)

Mystery attacker? (true form in comments)

Dœwnęÿ, the Iron Hare

SPIDER,THE UNKILLABLE/POISONABLE ONE

GROUNDILE,THE DANGER UNDER GROUND

Velvet, Conqueror of Planets

Nogla the one who consume the sugar

Armored Goomba, The Unstompable.

Bubble Bitch, consumer of the soap

perry white sidequest spawns hitmen until you kill him he goes to different areas of the map every day you get the meth-cooking operation of defeating him witch is the best way to earn money in the game sidequest difficulty: nightmare as he has the cartel on his side

Jesus Christ, the rockstar lord