Iguana Entertainment, later known as Acclaim Studios Austin, was an American video game developer based in Austin, Texas. The company was founded in 1991 by Jeff Spangenberg, previously lead designer for Punk Development, and originally located in Santa Clara, California. Iguana found first success with Aero the Acro-Bat, moved to Austin and acquired Optimus Software (later Iguana UK) in 1993. Iguana was acquired by Acclaim Entertainment in January 1995 and received another sub-studio, Iguana West (formerly Sculptured Software) in October that year. Spangenberg was fired from his position in July 1998 and filed a lawsuit on breach of contract the following October. Iguana was rebranded Acclaim Studios Austin in May 1999, and the studio was closed down in August 2004, followed by the Chapter 7 bankruptcy of its parent in September 2004.