> Is there an emulator that plays Galaga on a EM500?
>
If you want to play galaga in you EM500 theres a lot of option.

1) PocketNES and use a Galaga rom
2) BFEngine and use a Galaga rom(Galaga90)
3) PocketGB or PalmGB and use a Galaga rom
4) or use Darren's Hack Galaga rom with MameCE3 or Mameboy.

Enjoy