Raiden II

>>4038417
Use the version of mame that matches your romset.

>>4038439
The what now? How do I figure out which version of mame matches the romset I got?

>>4038417
mameUI64 + planetemu dot net

https://mega.nz/#!bxxgFaxC!htJz5-Lmy1VriVvwzg-6YLh2BxadLMFngoVM2BEM9mo

A) You need MAME 0.155 or newer. That's when they made those games playable. Anything newer than 0.155 will work fine.

B) You need the roms for Raiden 2 and DX that are 0.155 or newer. You can find 0.161 at the internet archive. https://archive.org/details/MAME_0_161_ROMs You can find 0.179 to 0.185 at planetemu.

C) If you download roms for MAME and they don't work, here's how to figure out what MAME is looking for and not finding. Open a command prompt. Navigate to your mame executable folder. Then type in mame64.exe(or whatever your executable is) romname. It will attempt to load the game, then spit back an error telling you the name of the files it's looking for, and what zip files it will look inside of to find them. From there, google should be enough to help you find what you need.