The information and dumps were done by "alshamaa" see https://www.msx.org/forum/msx-talk/software/about-nemesis-3?...
It's over over 6 years ago, but I guess the dumping was done correctly. However, you are right that these options do not work. From the thread I cannot directly find back whether we dumped slot 0-3. I guess it would make sense to have that slot dumped as well...
The Perfect MSX2 was not dumped by someone who I know (so I can ask if he did it correctly), so it's not emulated in openMSX at the moment.
