Michael's ZSNES for Mac also has a few new features, such as an upgraded version of the ZSNES palette, support for USB flash drives (which supports Nintendo's 'DS'), support for the PC keyboard controls, support for the Converse footwear, and an improved dll library. There are many other minor changes that aren't very important to gamers, but I'm only including them because they are nice add on features. His other major improvement is in the graphics and sound department, which is now significantly better than before. His most recent release of ZSNES for the PC is now Mac compatible, which can be downloaded from his website.
Joonas has made some improvements over his previous ZSNES releases, most notably in the emulation engine. Some of the emulators have more than one hundred games, many of them Japanese and Korean original games. ZSNES currently has over half a dozen releases for the Nintendo Gamecube, Nintendo Wii, PS2, Xbox, N64, PC, and homebrew applications. It was developed by two long time Nintendo employees, Joonas Regalis and Michael Palmer. ZSNES is a popular free software Super Nintendo Entertainment System emulator written in assembly with pre-installed ports for Linux, Windows, DOS, and homebrew applications for Mac.