I used Wine to package up a Mac version of Mattie Brice’s Mainichi.
Unfortunately it's a lot larger than the windows version due to containing all the extra data Wine requires & the music doesn't work.
If you're running it on Mountain Lion or newer you’ll need to switch gatekeeper off or do the “control+click on app and open” trick to run it.
If you have any problems, tweet @VioletMayMay or email maya at violetmay dot net and I’ll see if I can help.
Please note that while I can try my best to preserve access to Mainichi for posterity, this game was made with software that is more than 10 years old now and the ever-changing landscape of technology makes that task harder every year. This version of the game for MacOS is already on borrowed time, and eventually maintaining this port will be beyond my abilities - Maya V