A hollow-eyed blue big-chicken (blue like my avatar). On mobile so bear w me. Floats down and flies slow but covers fair ground, like space crab.
Addendum: uses metal suit/armoured shirts difficulty dependent, not plain adult shirt
Attacks are 2, or 4 when high difficulty, “tear” laaers that sweep from down to across (boss stays low enough to just go above it). Same lasers yolk star uses.
A charge in which it rushes the player briefly or just moves faat, like Anniversary boss but a bit longer or like sweater chicken in ci3 chapter 11
A rain of teardrops either like slobs or like superchick
And dropping feathers, kind of like Beaker papers or Heart spores.
Should use ci5 boss theme i think