There are costumes, there are cosplays, and there are playable cosplays. Introducing the Game Boy cosplay, powered by a Raspberry Pi. Not only does it let anyone play Game Boy games on your person, but they can swap cartridges to switch games, just like on the real thing:
This video, which was only uploaded earlier this week, notes in the description that it’s a clip “of my friend.” The only previous information about this cosplay was a picture, apparently taken by the same person who uploaded it to YouTube, submitted to Reddit back in August. If you have any more information about the people behind the project, or how it works exactly, do get in touch.