Cuphead is a strange and stunning video game (see the trailer below) that perfectly resembles a pre-war Grim Natwick cartoon. But seeing it in black and white on an old cathode ray tube (above) takes it to another level entirely.
Running a new console to an old monochrome TV requires a serious chain of dongles. First the composite HDMI adapter you know you need, but then an coax composite RF modulator because these things are so old they don't even have composite inputs, then maybe a twin-lead flat antenna plugs coax transformer as well, because these things are so old they don't even have coax.
P.S. black and white and technicolor filters are both available as in-game options, but you've got to beat it, and it's a very difficult game: