Since the official library is limited, the community uses "injectors." These tools take a standard SNES ROM and wrap it inside a CIA container that "tricks" the 3DS into thinking it is an official Virtual Console title. Hardware Requirements: Old 3DS vs. New 3DS

You can close your 3DS to pause the game, just like a native title.

These models have a faster processor and natively support SNES Virtual Console CIA files with near-perfect accuracy.