User blog comment:Enderparadox/Straight from your console to your threads, Here comes Concert Crash, Boss fight style!/@comment-32064726-20151124021829

I'll go ahead and attempt to play along with this~

Boss: Xemnas, the final boss of Kigndom Hearts 2. You can see how he fights here Or you can watch from the beginning to see all of the parts of the Final Boss Battle

FInal Boss Theme: Darkness of the Unknown