Discuss hardware-related topics, such as development cartridges, CopyNES, PowerPak, EPROMs, or whatever.
I believe that's one of those COOLBOY carts. Metroid will have been mapper hacked to MMC3 inside; should be pretty easy to dump it given a Kazzo or similar.
Perhaps being mapper hacked to MMC3 is what makes this version load otherwise invalid passwords? I find it amusing that all of the "invalid" passwords seem to load at Tourian. In any case, I'll see if I can source a Kazzo. That's if I feel like it.