Green Hill Zone is the opening area and theme from Sonic the Hedgehog on the Sega Genesis, first released in 1991. Its music became one of the most recognizable tracks in platform game history, closely associated with Sonic as a character and brand. The song spread far beyond the original game through remakes, compilations, memes, YouTube edits and nostalgic gaming posts. People still use it because a very short clip immediately communicates retro gaming, speed and bright arcade style.