Sorry for the noob questions but I want to as about the control: Use the same control theme as the gameboys (D-pad, A, B, select, start).Does it mean that when we map the button to keyboard we only give user the same button as the gameboys ?
It's just about the restriction on the number of inputs you can have. You can map the A button to any letter you like, for example, but you can't add a "diagonal movement button".