The original soundtrack was composed by Pixel using ORG Maker and is used for the freeware release, the DSiWare port and the 3DS eShop port. It was also included as an optional soundtrack for the Wiiware port and Cave Story+.
|On to Grasstown||
|Eyes of Flame|
|The Way Back Home||
The soundtrack was later remastered by indie game music writer Danny Baranowsky. It contains remastered/remade music pieces from the original soundtrack. This soundtrack was used for Cave Story 3D, and was also included as the default soundtrack for Cave Story+.
This is an arrangement of the soundtrack by Yann Van Der Cruyssen. Some criticisms include straying too far away from the classic melodies, lack of bass, and weird pitch and looping in the tracks. However, according to the website Tiny Cartridge, these problems were due to improper editing on the game tester's part. This soundtrack is included as an optional soundtrack for Cave Story+ on Steam, and as an optional soundtrack for the Wiiware version (in the Wiiware version it is selected as the default soundtrack on start up).