Mesen

Mesen is a high-accuracy NES emulator for Windows and Linux. It offers numerous features, such as save states, video filters, netplay, rewinding, overclocking, cheat codes and HD packs. It also includes an extensive set of debugging tools for homebrew development or romhacking. Mesen-S is a high-accuracy SNES emulator for Windows and Linux. Game Boy and Game Boy Color games are also supported, along with Super Game Boy emulation. It contains most of the features found in Mesen, including an extensive set of debugging tools. These are development builds and may be unstable. Using them may also increase the chances of your settings being corrupted, or having issues when upgrading to the next official release. Additionally, these builds are currently not optimized via PGO and will typically run 20-30% slower than the official release builds.