Koopa's Theme

"Koopa's Theme" is the musical theme composed by Koji Kondo for Super Mario 64 that plays when fighting Bowser in Bowser in the Dark World and Bowser in the Fire Sea. The theme's title uses Bowser's Japanese name, despite the soundtrack releasing in North America both physically in 1996 as well as in Super Mario 3D All-Stars.

Reuses
The following list does not include ports or remakes of Super Mario 64.

Super Mario 64
In addition to the original "Koopa's Theme" in Super Mario 64, a short tune that uses the first four notes of its main riff followed by Bowser's laugh plays when Mario tries to enter an inaccessible door in the Mushroom Castle.

Super Mario Odyssey
In Super Mario Odyssey, an electric-guitar arrangement of the main riff of "Koopa's Theme" is included in "Break Free (Lead the Way)". An 8-bit arrangement of "Break Free (Lead the Way)" can be heard exclusively through the Music List by fulfilling at least three of Jammin' Toad's requests.

The English version of "Break Free (Lead the Way)" returns as a playable track in Super Smash Bros. Ultimate, where it can be played on any Super Smash Bros.-series or Super Mario-series stage.

Super Mario Bros. Wonder
In Super Mario Bros. Wonder, an electric-guitar arrangement of the first four notes of the main riff of "Koopa's Theme" plays in the opening when Bowser merges with Prince Florian's castle.

Mario Tennis (Nintendo 64)
In the Nintendo 64 version of Mario Tennis, an arrangement of "Koopa's Theme" plays in the Bowser Stage mode, as well as during matches on the Bowser Court.

Mario Tennis (Game Boy Color)
In the Game Boy Color version of Mario Tennis, an arrangement of "Koopa's Theme" plays during the Two-on-One minigame.

Mario Tennis Open
In Mario Tennis Open, an arrangement of "Koopa's Theme" plays during matches on the Bowser's Castle court.

Mario Tennis Aces
In Mario Tennis Aces, a medley arrangement of "Koopa's Theme" and "Koopa's Road" plays during the final boss battle against Bowcien.

Mario Golf: Toadstool Tour
In Mario Golf: Toadstool Tour, an arrangement of "Koopa's Theme" plays in Bowser Badlands.

Mario Golf: Super Rush
Part of the Bowser Highlands theme from Mario Golf: Super Rush is loosely based on "Koopa's Theme".

Mario Party 10
In Mario Party 10, an arrangement of "Koopa's Theme" plays in amiibo Party mode when Bowser's amiibo is being controlled.

Mini Mario & Friends: amiibo Challenge
In Mini Mario & Friends: amiibo Challenge, multiple arrangements of "Koopa's Theme" plays during all the levels in Fire Ride Fortress.