Mario on Indigo Island was created by usernamesarentimportant or Spiders as they call me.
Thank you for playing my hack it means a lot to me blah blah blah I'd like to thank my... cat for sneezing on me in the night.

Credits are within game, if you want to know what songs I used they're at the bottom of this text document.

All main assets of this game were made by Nintendo and they own the rights to the main elements and assembly.

Tracks Used*

SM64 Slide by Edark900
Cosmic Cove by Quote
Blue Eagle by MrMartley
Metallic Madness
Tomodachi Life Love Tester by theGael95
Steep Hill by VanessaWolfe
Spiral Mountain by Shroodboidbrat
--wario man21 was the original version but had to be cut due to issues with music and collecting a star.
Spirit Mountain by Metlfire
Brine Cave by Mosky2000
--marioshub Waterfall (Undertale) (Unused)
Sonic 3D Blast Volcano
Lavos Chrono Trigger
Lava Reef
Lower Brine Cave
Super Mario World Underwater by MilesGaming
Magmoor Caverns by Gamini (Unused)
Chasm Cave
Plack Beach
Barren Valley
Hideoout Helm
DKC Mines by Pieordie1
Castlevania CMed by Apioeus
Sonic Jam Museum
The Elemental Stars by ToasterKetchup
Mount. Blaze
Treeshroud Forest
Aquarium Park
RayMan Dream Forest by MrGreenThunder
Exclaim
Tetris Theme B
The Sea Where Ones Home Planet...
Loituma Leven Polkka
Forest Interlude
SMRPG Sunken Ship by windows10acerpc10

*Authors are only mentioned once because I'm lazy.
All if not most of these tracks are found in the SMWCentral Sm64 Music Section. Also, some of these tracks may have changed in the development.

Thanks to MarioCrash for betatesting the hack for me!