Sounds very good, it's definitely worth a try. We'll just have to see, if it's too jerky then, or if it's still good playable with auto-frameskipping. Galaga is one of my favorite games, that's why I'm looking forward to this update. Same for Pooyan, i played it alot in different Arcades, back in the time. I guess, in Pooyan not much more can be done, to have it running in real fullspeed on A500 machines?
By the way. The Amiga is really lacking ports of some of the old Arcade-classics, for which there are good ports on other retrosystems (like for example C64, NES, A7800, etc). I was already wondering why, back then in the 90's, when i had my first Amiga500. So it's good, that you're bringing some of the classics over there now. Nice work.