Sagat, jin, m. Boxer bison, ken and ryu was one of the first and original Streetfighter characters. I dont remember seeing Akuma on that old arcade setup. Gouken and Akuma both are able to beat Gotetsu who was there Master so it dosent surprise me that ryu and ken can beat who gouken beats too since Gouken trained them both and Oro is impressed by Ryu and Ken too.