Bill Loguidice writes: "The seventh of nine free online bonus chapters that are in addition to the 25 chapters found in our book, Vintage Games: An Insider Look at the History of Grand Theft Auto, Super Mario, and the Most Influential Games of All Time, is now available. Head on over to Gamasutra to read Defender (1980): The Joys of Difficult Games. The remaining two online bonus chapters, released one each over the next two months, will be Robotron: 2084 and Star Raiders, which will form the complete set of 34 chapters between the book and online. Don't forget there are well over 100 bonus images not found in the book or in the online bonus chapters, available here. PS: For those looking, the bonus images not used in the Defender article can be found here."