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?

Hi, sorry for the late reply.

You'll need to download the FRLG+ patch (available on pokecommunity), and use a clean FRLG rom (pokecommunity will say which one, can't recall).

No fast forward allowed. There are built in options to boost text speed, battle animations, etc.