The look of that reminds me of the Merlin game. My brother got one for Christmas one year.
I remember having some of those handheld games (I bet that I still have them, too). I loved them as a kid. There was a green one that was a football game from, I believe, Radio Shack. I also had a game that I would play for hours, but I can't remember the name of it. It had a yellow shell and four buttons. There were four lights that would go off in a sequence, and you had to push the buttons in the same sequence to progress. It would keep adding one more light to the sequence until you missed one. I think that I got up to 99 or 100 lights once.
So, MDS, are you going to order one?