: To shave off gigabytes, audio files are often heavily bit-crushed, leading to tinny music and distorted sound effects.
If you are looking for the technical "how-to" or deep-dive documentation, these resources are the community standard: The Cutting Room Floor (TCRF) legend of zelda skyward sword rom highly compressed
However, ROMs can be quite large in size, which can make them difficult to download and store on devices with limited storage capacity. This is where the idea of a highly compressed Legend of Zelda: Skyward Sword ROM comes in. : To shave off gigabytes, audio files are