Let Darkness Assemble: Final Boss Battle Medley

"Let Darkness Assemble: Final Boss Battle Medley" is a musical composition by Yoko Shimomura and Sachiko Miyano. It appeared in the Kingdom Hearts Orchestra -World Tour- live performance. The piece is a medley of final boss themes from , Kingdom Hearts II, Kingdom Hearts Birth by Sleep, and Kingdom Hearts 3D: Dream Drop Distance.

Composition
"The World of KINGDOM HEARTS" is seven minutes and 58 seconds long in the Kingdom Hearts Orchestra -World Tour- album.

The medley features the following boss themes, in order: "Guardando nel buio", "Darkness of the Unknown", "Dismiss", and "L'Impeto Oscuro".