Lava Reef Zone Act 1 comes from Sonic & Knuckles, released by Sega in 1994 for the Genesis as the second half of Sonic the Hedgehog 3. The zone is a cavernous lava filled area beneath Angel Island that leads toward the Hidden Palace and the final battles. Its music became a favourite among fans for remixes, ROM hack levels and gameplay videos, and short normal volume clips circulate on soundboards so creators can drop the recognisable loop into edits without the distorted loud versions.