In my teens, we would swap Commodore 64 games with each other. One day, I discovered that I can use a hex editor to change some stings in the games, writing my

In my teens, we would swap Commodore 64 games with each other. One day, I discovered that I can use a hex editor to change some stings in the games, writing my name or other silly messages in the games before passing them on, to surprise my peers!