The Oscillator

Description
A large blue King Fisher with open back headphones. An early game boss.

Story
Hatched into poverty as an orphan. The Oscillator left home at an early age in search of purpose. His years of traveling are undocumented, but based on the technology he's gathered along the way, it is likely he made it as far as Neoterra.

Location
The Oscillator can be found in the Lost Seaway, after speaking to Rosemary. His arena is a giant lake with multiple rafts that the player can use to move around.

Phase One
Once the fight is initiated, The Oscillator will play music out of his headphones. This music has a lot of bass. He will dive into the water and the music will soften. Keep jumping from raft to raft and listen for his music until you find his location. Drop a Land Mine down on that raft.

Once he flies out of the water, breaking the raft, he'll be damaged by the mine. If you don't find his location in time, The Oscillator will fly out of the water and fire a barrage of water bullets at you. Damage him twice with the mines to move on to Phase Two.

Phase Two
In this phase, The Oscillator will perform the same move as above, plus a variant. This variant includes a golden glow from the water. This glow will fire a golden musical stream from below the water, straight up to the sky, destroying the raft, then he will fly up and fire a barrage of water bullets.

Before that, he'll show you the music beam from above ground, as he flies just above the surface of the water, then slices the light beam from top to bottom in your direction, destroying any rafts in its way. He does this 3 times before moving on to another attack. At this time he is vulnerable to attacks from long range.

To add to the complexity, Water Giraffes will pop up from the lake and fire water bullets at you.

He will drop one Deus Orb.

Music
The Oscillator blasts music out of his headphones as he fights you. This is an example of what that could be: