The music of the game was the most time-request thing to do. 

Every sound and sound effects in the game are taken from the songs of Twenty Øne Pilots, even the sound that plays when you eat a small flower, that sound it's a single note taken from the song "Tear In My Hearth".

When I finally set all sounds, the high quality sounds was a little weird with the rest of the game, so to fix that, I take all the sounds back to edit process, and delete the Estereo, and convert the audio to a 16bit aspect.