I had a hinged version from 2009-2012 that I bought just to try out and had 3 games. I looked at it as kind of like Game Boy but the games less memorable. You can emulate Supervision in MESS but last time I tried I had an old computer and it didn't run very well. I don't really get the new version of MAME and how it's supposed to be integrated with MESS so I just use old versions of MESS for the odd systems that don't have their own good emulator.