I am curious about the accuracy for the PSX Beetle Core. I know that core is the best in PSX emulation right now, but i want to know: any game dont work at all, or with glitches, in the core? (software mode)? Metal Gear Solid has a well known audio glitch in most psx emulators (can be fixed with plugins, i know that). Tomb Raider freezes in ePSXe if loaded without a specifical cd plugin, Battle Arena Toshinden run twice his velocity… all games works ok in Retroarch out of the box. Is there some game, or tech demo, dont work in retroarch at all?
Why, do you want to make a Retron6? … JK 
Looks like the official bug thread is here:
https://forum.fobby.net/index.php?t=msg&th=1114&prevloaded=1&&start=
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