Homebrew fast forward or 2x speed for VC inject?

[kofman13]

is there a way to have fast forward or 2x speed for VC inject gameboy games?

 

[placebo_yue]

I dunno but why not use gameyob then?

 

[ZoMbiERD]

Or Retroarch's Gambatte, works fine too.

I remember there were special patches for Pokemon games somewhere, which add speed-up option. But emuls are more convenient.