Classic adventure game by Sonic, the most popular hedgehog in Sega's video games. You have to pick up rings at full speed. You can twist Sonic to protect himself from some elements, but if he runs into any of them, he will lose all the rings he has collected. Be patient and pick them up again, Sonic has a lot of energy! A game to have lots of reflexes and skill, and have fun with the adventures in Sonic's worlds. Game now in HTML5, compatible with all devices!