Although the majority of them work on the first version of Raspberry Pi, some others such as those for Nintendo 64 or the original PlayStation only run on version two and three. What we're offering you here is a disc image so that you can mount it on your Raspberry and get hold of an interface from which you can run different emulators. It's an operating system based on Raspbian that allows us to turn our Raspberry into a retro video game system emulator.
Raspberry Pi has different applications and one of them is the one offered by RetroPie.