The goal of emulation is to make the console work for every game that was released on it.
After all, if one or more games don’t work, the emulation cannot be accurate. And with imaccurate emulation, how can you ensure your other games are correctly emulated? In fact, if you know the emulator isn’t perfect - which it isn’t if some games have issues - how can you know any game is correctly emulated? You can test the game but it would take an infinite time to test everything. If you only do a few runs of the game, how do you know you haven’t missed anything?
In other terms: The language L containing every perfectly emulated game is undecidable.
Tommy Tallarico must be devastated