Ultimate Flash Sonic is a flash version of the hit eponymous Sega. This is an adventure game where you play a fearless hedgehog, or other characters in the same temperament, in a world fraught with difficulties but also provided bonuses. You have to catch up on rings in the shortest time and get to the end of the trail crossing obstacles and avoiding pitfalls. This game is not the best classic for nothing!
The main menu allows, in the "Options", set the level of music and sound effects. The menu "Start Game" lets you choose between the main game and the timed game, then four characters are available including Sonic the Hedgehog, select your favorite and click on "Start Game" to start the game.
Use the arrow keys left and right to steer your character and press "Space" to jump, arrow keys and "Space" to turn into a ball, hit "Enter" to break.