As one the best arcade game emulators for PC as popular as Nebula and MAME, Kawaks (also known as WinKawaks) is written based on Motorola 68000 chip, which can comprehensively and perfectly support games for CPS1/2 substrate of Capcom and Neo Geo substrate of SNK, easy to use and very powerful.

MAME (Multiple Arcade Machine Emulator) is a free, open source arcade game emulator for Windows users, it is also the most familiar to players from all over the world and one of the most commonly used game emulators.

Here, I collected and packed 11 BIOS files (.bin) of SEGA Genesis, SEGA CD, Mega CD and SEGA 32X game consoles in one package, for the use of Gens emulator when you want to run Mega CD and Sega 32X games in it (you have to provided with the respective BIOS files).

Gens32 Surreal is the advanced, modified edition of the classic Gens emulator for the 16-bit video game consoles SEGA Genesis, Mega-Drive (MD), Sega-CD, Mega-CD and 32X systems, based on Gens emulator but added lots of features. It was developed by DarkDancer from Germany.

Snes9x is a great freeware video game emulator for North American Super Nintendo Entertainment System (SNES)/Japanese Super Famicom (SFC), and it's the only SNES emulator available for Mac OS X system. And I think it's also the best one for Windows users.