So, what do you actually do in Granny? You play as a character who's trying to escape from granny's house, which is full of traps and secrets. You've got to find keys, hide from granny, and solve puzzles to unlock new areas of the house. It's pretty challenging, but that's what makes it so much fun!
Now, about that padlock code... it's a crucial part of the game, and you'll need to figure it out to progress. But don't worry, I won't give away any spoilers! Let's just say that you'll need to explore the house, find clues, and use your problem-solving skills to crack the code.