Sinister first, or else he will revive Beast.

When you are sucked inside of him, just defeat all the generator-like things. Stryfe: Destroy all the Brain Trust containers, then kill him.Ībyss: Fight until you get to the part where you fighting on opposite blimps. Mikhail: Use radial attacks when he spilts himself. Holocaust: Beat him up until the sisters start helping him, at that point defeat the sister helping him. Doing so will make the Living Monolith much easier to defeat The Living Monolith: To make fighting this boss easier, knock out all four of the sunlight rays. Bastion: Kill him quick or else he will summon Sentinels to help him.