Sonic the Hedgehog

Sonic bounces around surprisingly fast. The lack of Spin Dash makes the strategy a bit different from that of Sonic the Hedgehog 2 and Sonic 3 & Knuckles runs, since preserving your momentum becomes a lot more important. However, this doesn't prevent the authors from achieving crazy velocities even with such a significant limitation. In this run, the game is completed while collecting all 6 Chaos Emeralds.

There are also runs where Knuckles and Tails take advantage of their own abilities to finish the game in record time.

The second encode link leads to a camhacked version. But don't expect the videos where Sonic is visible offscreen to make any more sense than the original ones!

Fast bouncing around. This is a run of Sonic the Hedgehog which avoids zipping (gaining a large speed boost from being inside terrain), unlike the other run of this game. Therefore, most levels cannot be skipped, and instead have to be traversed using a more normal route, although the author still finds a couple of alternative methods to take shortcuts (it is hard to define hard rules to ban all glitches). In this run, the game is completed without collecting the Chaos Emeralds.

There are also runs where Knuckles and Tails they take advantage of their own abilities to finish the game in record time.

This movie has a full Atlas Map encode, which shows a camhack encode overlaid on a zoomed out map.