When you play Sonic The Hedgehog, keep listening when you stop. The skidding sound is the brake noise from Sega's chart topping 1986 arcade game, Outrun.
Upon loading the game, do not press start at the start menu. The game will go into demo mode (you will see a preview of the gameplay). Hold down the three 'jump' buttons on your controller and Sonic will bump into enemy objects, lose rings, and eventually... more