People usually associate emulators and emulation of old school classic game systems with their PC or MAC computer.
Most people don't realize the hundreds and hundred of homebrew games and applications that are available for their 3DS or 3DS XL system once they get a 3DS Flashcard like the R4 3DS or R4i Gold 3DS cards. There are however dozens of 3DS emulators that run a lot of the old classic games, by way of emulating the old school game systems. We associate our 3DS and DS systems with Mario and Luigi, Metroid, countless other amazing games and gaming herous.
Many people don't think of the Nintendo 3DS or the Nintendo 3DS XL as a classic gaming console.