List of Mario & Luigi: Bowser's Inside Story + Bowser Jr.'s Journey in-game music

This is a list of music tracks from the soundtrack of the game Mario & Luigi: Bowser's Inside Story + Bowser Jr.'s Journey for Nintendo 3DS, composed and arranged by Yoko Shimomura.

The music option contained in the game allows the player to listen to the songs in the game, as well as the original Nintendo DS versions of the Bowser's Inside Story tracks, simply by playing the game (the tracks are added automatically, instead of being collected from tapes in the previous remake). However, the songs "Battle Time!", "The Grand Finale" and "A Journey to Remember" are unlocked after defeating Bowser X in the Gauntlet. It can be accessed from the in-game menu screen via Records at anytime during the adventure. As in the other games involving this feature, the music can be played through headphones even with the system closed.

Main game music
The arranged versions of the tracks are marked with "DX" at the end of their names in the game.