Champion Edition was the only iteration of Street Fighter II to be released on the PC Engine, known in the USA as the TurboGrafx-16. Despite the original game's relatively large size, this port did not take advantage of the console's CD-ROM attachment. Instead, the game was released on a 20 megabit HuCard. For context, all other games released on HuCard had a capacity of no more than 8 megabits. As the standard PC Engine controller only had two action buttons, a new controller called the Avenue Pad 6 was released specifically for use with the game.