I've only run dos-box on the pc, so I don't know how it runs on the ps3. I've also only tested sm64, which runs well for what it is, but it's using 100% cpu cycles iirc. there's a sonic mania for dos-box as well, but I was never able to figure out how to select a stage. I was unable to build it too, because I don't understand allegro, which is a companion to djgpp, the dos sdk. I used the dev's build, and the main menu doesn't work, esc doesn't load the dev menu either, even when enabling it in settings, so I dunno. sm64 may actually be taxing it, and mania just doesn't work correctly.