In recent times, more info has come to light about the Sonic the Hedgehog 2 beta. One of these examples is a SEGA Genesis test program made to test the hardware of the Genesis. On this cartridge was a Sonic 2 module, filled with loads of unused music. The most famous unused track was "Club Scene", which most people call the Sonic Cabaret. This is a recreation of the module, with the track included. I hope you enjoy!
I got the Sonic and Tails sprites from DeviantArt, and the music is from the actual module itself.
