Hey, I know this is totally out of the blue but I've been reading through the TemperPCE thread and saw that you have a proper set of the syscard*.pce bios files for the cd bin/cue rom backups.
Or when your player dies, you can say in code, if enemy exists, do nothing, but if enemy does not exist, then create enemy at certain spot. (This would be a pain tho for lots of emeies)