Street Sports Soccer was the only title from the Street Sports series to appear on the IIGS, the others being Baseball and Basketball on other platforms, including the 8-bit Apple II.
After the game loads, which doesn't take long thanks to it being a ProDOS 8 game, you will be asked if you wish to use a joystick, to which yes would be appropriate if you were to play a two player game. The game can be played only as either a one player game against the computer or human Vs human, with one person on joystick with the fire button being button 0 or button 1 and with the keypad, with shift as the fire button. There are various team configs that can be edited.