Who are your favorite defunct developers? Two right off that I miss are Iguana and Blue Sky Software. The latter really knew how to push the Genesis to its limits and the former made many great classics (Aero the Acrobat 1 and 2, the original Turok, Pirates of Dark Water) and they did a good job of porting NBA Jam to the systems they ported it to. A few former Iguana employees worked on Metroid Prime, arguably the best game of 2002. Unfortunately, Acclaim drove itself into bankruptcy and I don't know why Blue Sky folded.