Final bosses can spawn as the final boss of a round of Siege, which would be wave 100, they can also spawn within the last 10 minutes of FFA or TDM modes before a arena closes for one reason or another.
Health: 105500
XP: 1791123
Body Damage: the same as Kronos
Spawning Message: "Kronos? Is that you?"
Weapons:
Krono Death Builders
Krono Death Gunners
Krono Death Shotguns
Krono Death Drones
Health: 105080
XP: 690071
Body Damage: 5080
Spawning Message: "The Universe fears as Hokon spawns!"
Weapons:
Hokon Builders
Hokon Hunter Cannons
Hokon Drones
Hokon Minions
Health: 108269
XP: 590072
Body Damage: 10080
Spawning Message: "The Universe fears as Rava spawns!"
Weapons:
Rava Trappers
Rava Builders
Rava Engineers
Rava Muskets
Rava Boomers
Rava Annihilators
Health: 135336
XP: 737590
Body Damage: 20080
Spawning Message: "The Stellar Team waits in silence waiting for there leader to arive.."
Weapons:
Stelling Miniguns
Stelling Triplets
Stelling Annihilator
Health: Twice that of Legionary Crasher
XP: Twice that of Legionary Crasher
Body Damage: Twice that of Legionary Crasher
Spawning Message: "..... the Legionary Crasher was nothing... why did you bring this upon us!??"
Weapons:
Centurion Trappers
Centurion Engineers
Centurion Ultra Mortars
Centurion Hyper Mortar
Centurion Annihilator
Centurion Sentry Spawner
Centurion Mega Streamliners
Centurion Elite Crasher Spawner
Health: 181890
XP: 293001
Body Damage: Thrice that of Legionary Crasher
Spawning Message: "The Multiverse trembles in fear as The Stellar Team's god spawns!"
Weapons:
Colum Annihilators
Colum Triplets
Colum Minigun Xs
Colum Pentas
Colum Cragers
Colum Assassin Xs
Colum Dual Gun Trappers
Colum Miniguns
Colum Basics
Colum Rocketeer
Health: 1063781
XP: 586112
Body Damage: 15782
Spawning Message: "The Multiverse trembles in fear as Anyas spawns!"
Weapons:
Anyas Builders
Anyas Machine Gun Xs
Anyas Gunners
Anyas Miniguns
Anyas Twins
Anyas Ultra Miniguns
Anyas Pentas
Anyas Skimmers
Anyas TriTrappers
Anyas Spiner
Anyas Annihilators
Health: 1.5x Legionary Crashers
XP: 1.5x Legionary Crashers
Body Damage: 1.5x Legionary Crashers
Spawning Message: "The Sentrys were all but disciples for what you have awoken... What have you done?!"
Weapons:
Legionary Engineers
Legionary Skimmers
Legionary Cruisers
Legionary Elite Boss Spawners
Legionary Sentry Spawners
Legionary Minion Spawners
Legionary Gunners
Health: 2.75x Legionary Crashers
XP: 2.75x Legionary Crashers
Body Damage: 2.75x Legionary Crashers
Spawning Message: "Pentagon, Beta, Alpha, we can go higher we can add weapons!"
Weapons:
Legionary Minion Spawners
Legionary Swarm Spawners
Legionary Alpha Gunner
Legionary Alpha Machine Gun
Legionary Pentagon Spawners
Legionary Machinerys