MAME developers support the (a myth—it never existed) but actually advocate: dump your own ROMs. The "0 missing" ideal is a preservation goal, not a piracy trophy.
The set is a fantastic snapshot of arcade history, perfect for low-spec builds or nostalgic setups. Just remember: the "exclusive" part is usually just community-organized polish. You don't need a keygen—just a good emulator, a bit of storage space, and a love for the classics.
Searching for specific packs like "ekmame plus 0100 roms extra full exclusive set 100 complete 0 missing keygen" often leads to untrustworthy sites. This specific string is frequently used as for sites that may bundle malware, adware, or "keygens" (key generators) with their downloads.