This is a Gameboy Camera. A device that turns any Gameboy into a camera.
Released in 1998 and retailing for $50 (equivalent to $85 in today’s money) it was the smallest digital camera on the market at the time.
It works just like any other game for the Gameboy, it just slots into the back. And just like that, you’ve turned your handheld gaming console into a fully-fledged point-and-shoot camera. It was brilliant as the Gameboy’s large screen was used as the viewfinder.