Rosie

Rosie is an inhabitant of the Oasis, and the main antagonist of Steamworld Dig 2. As such, she serves as the final boss. She is thought to be the leader of the remaining Shiner clan.

Boss fight

The first stage of Rosie's fight has her staying in one location (on the ground) and repeatedly shooting homing rockets from her mech-suit. As soon as one is about to hit you, knock it back at Rosie with a basic attack and let it hit her. Then run up to her and strike her her as many times as possible with the pick-axe as if you were mining.

The second stage of Rosie is dirt falling from the ceiling, with enemies (larvae) spawning, as well as a thin layer of green acid that rises as you beat the different stages. Rosie then starts flying, and shooting heavy bullets in a focused direction. These won't home in, they just spray out in the direction she fires and weaken the surrounding dirt. Take cover and wait it out, as she will eventually start shooting rockets again. Deflect it back once more then hit her as many times as you can.

The third stage of Rosie is tougher dirt falling, more enemies (larvae and parrots), acid rising, and heavy bullets spurting out in all directions. Wait it out, then deflect the rocket. Mine her again.

The fourth stage of Rosie is bricks and dirt falling, more enemies (more larvae and parrots), and a heavy layer of acid. Then heavy bullets go out in all directions, as well as dark purple orbs that destroy almost anything they touch. These orbs also bounce off of multiple blocks. Wait it out, then deflect. As she falls to the ground, hit her, and destroy the mech once and for all.