Thanks for all the info.

byuu: I see. To check whether or not read-protection is enabled, is it possible to put a clip or something over the chip and connect it to whatever device can read it? I wouldn't want to tamper with the stuff too much. Otherwise, I think I'll have to give up the thoughts on emulating it properly. Seems to be mostly minor differences in the game from what I have seen.

Just for the record, the equivalent to the "4-Line Digital Demultiplexer" (no idea what it is or what it does) seems to be stored on the EPL16P8BD[possibly some more] chip with a white sticker covering it. A search brings up that it's a "Ricoh CMOS Electronically Programmable Logic", so I guess there's a risk that even that one doesn't contain the final code and might need to be dumped in order to emulate the game.

J'orfeaux: I'm currently using Snes9x, but I will try BSNES as soon as I get some days off.

Evan: Yeah, I've had plans on getting a Retrode 2 as those seem so user-friendly and portable. Might at least do the trick with the other ones that keep failing. Definitely worth a try and it would be great to have anyway.