Old School coder Lantus has ported MAME to the Nintendo Switch, awesome news:
Also check his about how this port was made and reasoning behind design decisions.
Roms go into /roms subfolder. You need MAME 0.72 roms for this to work
This is the first version and there are bugs. I've tested CPS1, CPS2 , Konami and Midway games and they work fine. Many others probably still wont work yet
Quick Control Guide:
In Menu:
Left/Right Trigger - scroll rom list
Dpad Up/Down - go up/down a single selection
A - Start Rom
In Game:
Dpad/Analog - Movement
Minus - Coin Up
Plus - Start
Right Analog Down - Mame Options Menu
Plus + Minus - Quit back to Rom Launcher