Ben Heck rocks…a few months ago a guy emails asking if I could build a portable Neo Geo MVS system. I tell him it’s possible, but I’d have to work with some hardware to do tests. He kindly sends me a Neo Geo MV-1C, which is a 1-slot (holds 1 game) Neo Geo arcade motherboard from 1999, pretty much the last and newest model they made. If anything would run off a battery and be small enough that was it. Luckily I had a semi-built Neo Geo rig to test the new board with... Link.
Homemade Neo Geo MVS Portable