Learn the fundamental principles of underhandering, including how to fake it till you make it, when to fake it, and when to really just give up and buy the game.
Move on to more complicated and sophisticated underhanging strategies, including hacking your way to victory, exploiting game mechanics, and creating your own cheat codes.
But first, you have to learn the fundamentals, so make sure you've read Chapter 1: Exploiting the System first.
Underhander success stories from real people who have cheated their way to the top (or at least to a respectable spot in the leaderboard).
Read about John's incredible journey to the top of the leaderboard in John's Journey.