Eli5 why is Video Game emulation so difficult? And how do new glitches come about?

Question

Eli5 why is Video Game emulation so difficult? And how do new glitches come about?

In: 54

Answer 1

Here’s a few analogies for you:

Game: Hey, I need some bread for this sandwich.
Console: I have the perfect bread right here.
PC: I have tortillas.

Game: I want to take this trail to the mountains.
Console: I have a pair of hiking boots for you.
PC: I have this sports car.

To get emulation to work, the game needs to make a sandwich with tortillas and hike a mountain with a sports car. Totally possible, but some compromises need to be made.