Oswan is a Bandai Wonderswan emulator for the Mac. Oswan is the first Wonderswan emulator to be released for the Mac platform. While it does not support sound, it has very high compatibility, with only a few titles that do not work correctly. Additional features can be added to this emulator via Emulator Enhancer.
Note: Now requires OS X 10.11 or later running on a 64-bit Intel processor