Super Street Fighter II: The New Challengers was the first Street Fighter game that Capcom would release on its CPS-2 hardware. All prior Street Fighter games had been released on Capcom's CPS-1 hardware. The arcade version of this game also included a variant that allowed four arcade cabinets to be connected together for simultaneous tournament play. This version contained the most extensive changes introduced in the series:

Four new characters were added (Cammy, T. Hawk, Fei Long, and Dee Jay). Boss characters received updated regular move sets. Boss characters also received new, individual game endings. Each character could be selected with one of eight different color pallettes. Some of the original eight playable characters received updated art and audio. The speed introduced in Hyper Fighting was reduced. A combo counter (a first despite combos being in the game since the original), as well as point bonuses for first attack, combos and reversals.

But if you download it your mind will get blown away