While you were playing on your Virtual Boy, you saw a tall and lanky Mario. Then the game crashed, with the next message

Uh, oh! It looks like you're playing a corrupted version of the game, but don't worry... I'm already inside your head.

Afterwards, when you took off your headset you saw the same Mario that you've seen in the console. He says

Shhhhh... Don't make a sound. We don't want your parents from stopping you, don't we?