1. Follow the game maker that made the game you came here from. 2. Once you have followed them all you need to do is look at their 'about me section' or 'what I'm working on section'. Once done all you need to do is type in the key on the game you came from. Now you'll have access to whatever is on their game. Want a system like this? You'll need to follow and message me on my profile and I'll send you the code via scratch project. This project can detect who is using it, through the "username" make sure to follow them because we know who did and didn't follow them. A key is for the purpose to support game makers and help them grow. Don't try finding the key in the code of a project it's well hidden.