"Perfect Dark Zero" made its first appearance at Spaceworld 2000, an annual video game trade show hosted by Nintendo in Tokyo. The demo briefly showed a 3D real-time render of Joanna Dark. Some reports further suggested the development of the game with Rare applying to trademark the names "After Dark", "Perfect Dark Evolution" and the phrase "Shot in the Dark". The next year, at the Electronic Entertainment Expo in June 2001, Nintendo advertised the title "Perfect Dark Zero" on a list of upcoming GameCube releases, but it was quickly removed. In January 2002, it was allegedly announced that its release was pushed back to 2004 due to internal team problems at Rare. When Rare was purchased by Microsoft in September 2002, several cartoony images of Joanna Dark were released, but few other official announcements were made in the following years.