I've made some progress with sonic mania for the ps3. I can get it to run in an emulator, but it will not run on the system (just like how it was with the ps2 version of super mario 64). I'm going to try using the source code of the actual release. however, this version has a ton, and I mean a ton of problems. you'll have to look at the ultra0000 github to see all of the issues. one important one is that it will not work without a decompiled data.rsdk (it needs to be in folder format). it also does not have dlc added to it yet. it hasn't been updated since mid October, and I've gotten no response from the dev: