[Episode 3] Boss Fight: Sperio
Following the successful detonation of the Plasma Bomb in The Underground Space, Sperio appears on his junk blade in order to try and foil Acarno’s escape.
Sperio must be dispatched before you can progress any further.
Distance yourself from Sphereo by running away and equip the BIG MAGNUM. Landing four shots on Sperio should be enough to take him out.