This section isn't really for hat kind of rom....but I recommend you check out droidemu light. It is a pretty good emulator and has a built in rom manager.
"Bootloader begins to learn at a geometric rate. It becomes self aware at 2:14 a.m. Eastern Time, August 29th. In a panic, they try to pull the plug. Bootloader fights back."
definitely the wrong forum BUT it depends on what Pokemon game you wanna play. I have GameBoid or something like that (its a GBC emulator) & my pokemon installed on the SD card and you can play and save from the SD card.