The Nintendo Labo team created a Game & Watch-like prototype at one point during development

For every Toy-Con that Nintendo has released, there are many more prototyeps that will never see the light of day. Case in point, the one prototype that Nintendo's Tsubasa Sakaguchi discussed with CNET.

CNET: What's the most impressive or intricate thing you've seen built with Toy-Con Garage?

Sakaguchi: There are quite a few, but one that really surprised me was when someone on the internal debug team cut out a piece of paper and put it over the screen to recreate a Game & Watch game. And we already showed this one in one of the videos, but the first time I saw the bank that lit up in different ways depending on the size of the coin dropped into the slot, I was taken aback by what that simple mechanism could do. I would definitely encourage everyone to think about what they could do with something like that.