This is a hack of Sonic & Knuckles for the Sega Genesis. It changes the frequency of music and sound effects making for a different sounding game. Some music is barely recognizable and the game can feel quite different because of it.
The patch is in xdelta format. The ROM should be in BIN format.
Sonic & Knuckles Reversed Frequencies
Credits: FraGag
This is a hack of Sonic & Knuckles for Sega Genesis. The frequencies of the sound effects and music have been changed making for a different gameplay experience.
Sonic & Knuckles (World).md - NOINTRO
CRC32: 0658F691
MD5: 4EA493EA4E9F6C9EBFCCBDB15110367E
SHA-1: 88D6499D874DCB5721FF58D76FE1B9AF811192E3
SHA-256: 6E12E6B33C26EBFCD0BE433251D21CF6284EAFE9F71B027BDA3767AE59AFFEC1