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Bosses must be defeated in order to progress into the game's storyline and unlock the next mission. Defeating each boss awards the player with a quest completion, sometimes with rewards (e.g. defeating Dreadwing awards the processor).
Erchius Horror Edit
Main Article: Erchius Horror Edit
Erchius Horror is found in the Erchius Mining Facility mission. It spreads damaging beams of energy around it, one at first, then two after it's been shot once. It also spawns a moontant after each beam phase.
Being struck with the cannon will cause the crystal to crack and shards will fall to the ground. After three shots the boss will be defeated, allowing players to complete the mission.
Astra Nox Edit
Kluex Avatar Edit
Main Article: Kuex Avatar Edit
Big Ape Edit
The Bone Dragon Edit
Main Article: Bone Dragon Edit
Optional Bosses Edit
Fought in the Dreadwing mission, given by the penguin at the outpost.
It appears as a giant flying saucers driven by a penguin. It spawns penguin soldiers, tanks, and mini saucers. It attacks by shooting laser beams that can break blocks or slamming itself onto the ground.
First revealed in public stream at Insomnia Gaming Festival
Shockhopper MK I Edit
Main Article: Shockhopper MK I Edit
Shockhopper MK I is the tier 5 boss, fought in the mission Mechanical Testing, given by the penguin in the outpost.
This boss replaced Fatal Circuit. Attempting to use the inactive robot will summon this boss instead. The boss attacks the player with melee attacks, electric balls and ranged missile and flamethrower attacks.
The boss will eject the penguin shit pilot after the battle. After talking with him and him thanking the player for helping him test his mech, you turn the mission into him and the mission is complete.
Giant pink monster Edit
Main Article: Giant Jelly Edit
This is the only pre-Upbeat Giraffe boss still in the game, summoned using the Peanut Butter Trap. As of now, this boss is purely optional as its drops do nothing.