Some more info: The Bandai Pair Match was a one or two player matching game (basically like Concentration). It was used as a prop in Star Trek: The Next Generation (frequently seen in Ten-Forward of the Enterprise):
More Pics, a ROM and even the manual are available at the Handheld Games Museum - check it out.
My friend's grandfather had a pyramid in their garden. Not a big stone one, but more like 4 sticks in the ground. He would take naps in the pyramid hoping to cure his cancer.
It didn't work.