Modders have found an NES Emulator embedded on the Nintendo Switch Firmware with the codename, ‘Flog’.
According to the description found on the Switchbrew website, it’s already installed on Switch and is just waiting to be activated to be fully functional.
We’ve already known the capabilities of the Switch and its upcoming features including the ‘Classic Game Selection’ which will be part of the Nintendo Switch Online service arriving in 2018. This information only solidifies that, and hopefully, we’ll get more information in the coming months.
Source: All Source Gaming | Switchbrew