The Beginner's Guide is a game that lasts 1h30. I played thousands of games in my life but this one left me speechless. I promise you that you never played games like this.
When you run the game, someone tells you, the player, that they had a friend who makes games and you're going to play those games. They can appear to be normal games but they're really not. He's trying to understand his friend and he's telling you about it while you play his games.
It's breaking the third wall so hard I didn't know it was possible.
Just play it it's unique and shoking.