Boss Battle Theme 1 - Adventure Time: Pirates of the Enchiridion

As far as I can tell, none of the combat themes have names. If anyone knows the names of these songs, please let me know.

Soundtrack composed by Chris Jolley and Ben Scholey

Original Soundtrack from "Adventure Time: Pirates of the Enchiridion" developed by Climax Studios:
https://store.steampowered.com/app/728240/Adventure_Time_Pirates_of_the_Enchiridion/

Disclaimer: I do not own the rights to the music or picture; all credit goes to individual composers and artists.