fast forward the navigation very simple and the d-pad offers fast-forward, rewind, stop, play and pause.
Their speed and direction can be adjusted with the d-pad and touch screen.
To go even faster, you tap any direction on the d-pad (accessible with your left thumb) to initiate the "boost" or "turbo".
Hold the Square button and press the D-pad in the direction you want it to go.
Sporting a small black and green LCD screen, an 8-way d-pad and two action buttons, the Game Boy was an instant hit.