This is a playaround of what is considered the most popular hack of Street Fighter II': Champion Edition. The hack was found in bootlegged arcade cabinets throughout the world, surpassing the original in availability in some places.
This hack features several modifications, such as the ability to change characters mid-match, teleportation, midair special moves, and new projectile attacks. Capcom later incorporated some of these new moves into Street Fighter 2 Turbo.
In this run, the author shows off all the fighters and makes good use of some of the craziness added to the game. He also shows off quite a few glitches that are quite amusing to see.
Note: As it is widely available in stand-alone form, no patch is available or necessary.