WARNING: It has been brought to my attention that MAMEDEV, the team that is owed thanks for the wonderful emulator, has been updating the NEO·GEO sets in recent updates. So, if your MAME ROMs are current, then you may find some games not working whatsoever. Hopefully, the upcoming v.2.1 (no date announced) will mirror those changes. Please heed this warning should you experience any non-working games.
Thought I'd toss a helpful guide on...
NEO·DS Conversion Guide
Thought I'd toss a helpful guide on...
NEO·DS Conversion Guide