Boss Music is the music used while facing bosses in all Kingdom Hearts games.
Kingdom Hearts
- Night of Fate - Leon;
- Destiny's Force - Darkside (Second and Third Battle), Opposite Armor, Parasite Cage (Second Battle), Jafar (Genie), Oogie Boogie (house), Behemoth (Hollow Bastion), Phantom;
- Shrouding Dark Cloud - Guard Armor, Trickmaster, Sabor (Fourth Battle), Cloud (Story);
- Squirming Evil - Clayton and Stealth Sneak, Cerberus (Story), Jafar, Ursula, Oogie Boogie, Captain Hook, Maleficent;
- The Deep End - Giant Ursula, Maleficent Dragon, Ansem and Guardian, Rock Titan, Ice Titan ,Kurt Zisa
- One-Winged Angel (Originally FFVII) - Sephiroth;
- Forze Del Male - Dark-Riku (Xehanort's Heartless);
- Guardando Nel Buio - Ansem with Guardian (Second Battle), World of Chaos.
Kingdom Hearts II
- Tension Rising - Twilight Thorn, Demyx (First Battle), Beast;
- The 13th Struggle - Axel, Luxord, Unknown, Axel Data, Luxord Data;
- Desire for all that is lost - Dark Thorn, Hydra, Retro-Pete (Second Battle), Volcanic Lord and Blizzard Lord;
- Vim and Vigor - Shan-Yu, Cerberus, Captain Barbossa;
- Dance to the Death - Thresholder/Possessor, Shadow Stalker, Prison Keeper;
- Rowdy Rumble - Pete Olympus Coliseum, Pete (?), Retro-Pete;
- The Corrupted - Hostile Program, Storm Rider, Grim Reaper, The Experiment, Groundshaker;
- The 13th Dilemma - Demyx (Second Battle), Xaldin, Xigbar, Saïx, Data Demyx, Data Saïx, Data Xaldin, Data Xigbar;
- The Encounter - Oogie Boogie, Hades, Scar, Jafar (Genie), Master Control Program and Commander Sark;
- Disappeared - Xemnas, Data Xemnas;
- A Fight to the Death - Xemnas (Armor);
- Darkness of the Unknown - Dragoon Ship, Inexistent World;
- Sinister Shadows - Battle of the 1000 Heartless and Sark.
- The 13th Reflection - Zexion, Larxene, Marluxia, Lexaeus, Vexen;
- The Other Promise - Roxas], Data Roxas;