The version "0.139u1" refers to the first "update" (u1) following the 0.139 baseline release.
| Aspect | Performance in MAME 0.139u1 | |--------|-------------------------------| | Boot | Yes, the game boots to the Atomiswave splash screen and enters gameplay. | | Graphics | Partial. Sprites (characters, enemies) render correctly, but some background layers (especially the parallax scrolling in Mission 2) are missing or corrupted. | | Sound | Unstable. Music may stutter or play at incorrect speeds. Some sound effects (explosions, voice clips) fail to trigger. | | Input | Fully functional with keyboard/joystick mapping. | | Speed | Acceptable on a single-core ~2.5GHz CPU of the era (2010). Frame drops occur during heavy action (e.g., Mission 3’s mid-boss). | | Savestates | Unreliable – often crash the emulator. | metal slug 6 mame 0139u1 rom top
Comparison with later MAME versions: By MAME 0.150 (2013), the Atomiswave driver matured, and Metal Slug 6 became nearly perfect. Thus, 0.139u1 is historically interesting but not recommended for actual gameplay due to graphical and audio flaws. The version "0
To run this game successfully in this specific version of MAME, you need two distinct components located in your roms folder: The Game ROM: The game data itself
The Game ROM: The game data itself.
For MAME 0.139u1, the ROM set for Metal Slug 6 typically uses the specific driver name mslug6.
In emulation communities, a “top” ROM means: