I built Playtune https://playtune.app - a web game where you can turn any YouTube videos into a rhythm game. It comes from a frustation from playing rhythm game but they have limited song catalog. Playtune literally have millions of song that you can play. Any song that is uploaded to YouTube can be played as long as it allow embedding. You can even make a rhythm game out of five minute craft videos if you want or linus tech tips.