While this version is stable, be aware of:
For faithful arcade experience, Metal Slug 6 is excellent. If you plan to emulate, use a recent MAME build for improved compatibility and fixes; only use 0.139u1 if you have a specific retro setup or dependency on that version. metal slug 6 mame 0139u1
: This version of MAME (0.139u1 / MAME 2010) does not support or emulated Atomiswave hardware. While this version is stable, be aware of: