This book is also known as: "How Programmers Turn a Crappy Game into a Timeless Classic with a Single BUG" Recently, the president of Nitiandang, Gu Fan, once again fell from grace due to a minor bug in his new game. As a top-notch designer in the industry, all of the games designed by Gu Fan have very distinct characteristics: At first, players felt that these games were monotonous, dull, and purely revolting garbage. However, once players discovered a major bug, the gameplay underwent a drastic transformation, rendering them sleep-deprived and unable to quit! So, players once again launched a major debate over "whether this is actually a bug or a game mechanic." In response to this, Gu Fan clarified in an interview with all seriousness: "Hello everyone, I'm the game designer Gu Fan, but you can also call me by my English name: fan·gu (means rebel). "I want to reiterate firmly that these so-called 'core gameplays' were not part of our company's original design—they are bugs! It's just that we didn't fix them because the players liked them!"