Ha! I've got one of those!!! (Nintendo Game Thingy)...
I picked it up at a local flea market for $30.
It blabs about coming with 163 games (or close to that), but it's the same issue with MAME having 3,900 games... Half (or more) of them are just different version releases. But it does have a good 50+ different games. Mario 1,2,3, ExciteBike, Contra, Galaga, Duck Hunt, and a bunch of others.
It's kinda wierd & I'm not sure how exactly it works, but all that is required to play the games is to plug the main controller into the DC adapter (or batteries) and the A/V jacks in your TV. The main controller is shaped like an N64 controller (but only the 8-way and AB buttons actually work. The second player controller is shaped like a Genesis controller (Still only the 8-way & AB buttons functional) and it includes a light gun as well...
I was going to hack mine into a tabletop arcade with a 13" TV, but my wife wouldn't have it... She loves sitting on the living room floor with the controller plugged into our main TV. I think I'll go ahead & go back to that flea market & try and get a few more of them (if I can find them again...). But if I am able to find them, I'd be happy to distribute a few of them if any one would be interested. (But let me see if I still have a source of them first)
They would be perfect to hook up to a 4" LCD screen for the build your own mini competition... It even allows you to run it off batteries and it has a slot for original Nintendo carts. (I don't have any carts at the moment, so I haven't tested out the slot).
hehe... Ideas, Ideas, Ideas....
I'll try & get some pics of this thing up tonight.