what feature led to the most sales for the playstation 2
PlayStation 2 Announced in 1999, the PlayStation 2 was the first PlayStation console to offer backwards compatibility for its predecessor's DualShock controller, as well as for its games. The PlayStation 2 is the best-selling video game console of all time, selling over 155 million units, with 150 million confirmed by Sony in 2011.[10] More than 3,874 game titles have been released for the PS2 since launch, and more than 1.5 billion copies have been sold.[11] Sony later manufactured several smaller, lighter revisions of the console known as Slimline models in 2004. In 2006, Sony announced and launched its successor, the PlayStation 3.