While looking for a ROM hack on an old website, you stumble across a file titled "FALLEN KINGDOM". Curiosity gets the better of you, and you click "DOWNLOAD", not knowing of the horrors to come.

There's a picture of Mario on the screen, next to some words.

БРАТ МАРИО КОМПЬЮТЕР 64 Нажмите "ENTER", чтобы начать игру! Z: "Run" X: "Jump"

It's a Russian bootleg. Weird...