If the player lets Sonic get hit or slow down, the game degrades from 16-bit graphics to almost Game Boy levels. You can find this mod, and a slew of other Sonic-centric mods, here.

Mercifully, Sonic the Hedgehog's 3D outings have always restrained themselves to a third-person view, letting us watch the speedy critter from a comfortable distance. Now, one modder has given us ...