They could of just ported it using a pce emulator prolly what they did.. I could be wrong but it would , explain no vmu saving. It's not like the dreamcast could not have a fully working pce emulator with cd.. We had one that worked a long time ago ..
Can some1 pls disassemble (pcemu.bin) the pc engine emulator found on the dream passport 3 or dream passport premier disks?
it has already been done...