From Brotato Wiki
This content is part of the Abyssal Terrors DLC.
Boss name not found
Boss name not found
Bosses
Bosses are special enemies that only appear on wave 20. Only one boss will spawn in dangers 0-4 but both will spawn in danger 5 although they have 25% less health. These are the most powerful type of enemy with 29900 health and the player will win the run when all bosses on the wave have been killed or the wave that the boss is on ends due to time. Just like elites, they can't be buffed by the buffer enemy.
Mutation 0
(initial phase)
Chases the player, firing a stream of projectiles.
Mutation 1
(70% hp or 25s)
Moves randomly and spawns a spiral of projectiles centered on the player, which then move toward them.
Mutation 2
(40% hp or 55s)
Chases the player while continuing to spawn spirals of projectiles and having four lines of projectiles orbiting around it.