Hi all,
The PocketStation retail BIOS has never been released before.
I looked hard but couldn't find it, so I brought all the hardware and extracted it myself.
It's available here if you're interested:
https://mega.nz/#!UZhHnLpD!fxpAIT0UZ...us3WDKBRfWgIQw
Unlike the one with PKemu, this BIOS has full compatibility with all PocketStation games.
More info here:
http://emulation.gametechwiki.com/in...tion_emulators