Sonic the Hedgehog for DOS is a Spanish fangame developed by Virtual Dreams in 1999. This short game is composed of four stages, namely two regular stages (Green Hill and Pico Land) and two stages with unique boss fights (Garfol Cyte and Final Timur). The assets are taken from the Genesis Sonic titles, with the vast majority of them being from the first title. The physics in this game are pretty wonky when compared to the Genesis titles.
Stockiel defeats Robotnik in this short fangame in record time.