My Sonic Shoes

Sonic had a novel method of attack. As a hedgehog, he can curl up into a ball by either jumping or by rolling along the ground, a state in which he can damage most enemies by simply colliding with them. This was a change from most other platform games, where the player could damage enemies only by shooting or jumping on top of them. While rolling along the ground, Sonic can roll down slopes, gaining speed as he goes. Most slopes are irregular, as opposed to the fixed angles seen in previous platform games, and the game has the physics to match. Sonic’s acceleration down a slope depends on its steepness; if traveling fast enough, he can run up and around 360° loops; and he suffers from drag underwater.