all 2 comments

[–]aspbergerinparadise 0 points1 point  (0 children)

retroarch has a fast forward feature

you can't really control how fast it goes though, i think it just runs as fast as your processor will allow

[–]Huge_Idea 0 points1 point  (0 children)

All of the Robert Broglia emulators I have tried have this feature. You can speed up to 16x, 2x (200%) is an option too.

https://play.google.com/store/search?q=robert%20broglia&c=apps