It's bad to do things to others that are wrong.
Ted is playing a game with some random people online against a computer opponent.
Ted wants to challenge himself.
Ted handicaps himself by not using the most powerful techniques, then still manages to emerge victorious.
Ted helps defeat the computer opponent, then turns against each of his allies and backstabs all of them.
Ted's allies are impressed by Ted's skills and learn some new techniques from his playing style.
Ted's allies feel betrayed and outraged, then embarrassed as Ted defeats each of them.