On a Nintendo Game & Watch
The YouTuber who goes by stacksmashing proved that you could hack Nintendo’s modern iteration of the Game & Watch, but he also proved the tiny system could indeed power the original Doom as well. It’s not an ideal solution, as he had to remove textures and effects. It also chugs hard when there’s a big enough room with multiple enemies on the screen, but it does show just how far the homebrew Game & Watch scene has come.