First, if there is any error, and because I don't know how to speak English, I'm using Google Translate to translate.

What is the game's ROM that has to be used?

Can I use Fast Forward?

And if so, what is the maximum Fast Forward that can be used? 2x, 3x, 4x, 5x, 6x, 7x, 8x, 9x, 10x?