Perfect Dark

Perfect Dark is a first-person shooter video game for the Nintendo 64. Developed by Rare and released in 2000, Perfect Dark is seen by many as a spiritual successor to Goldeneye. Set in the future, Perfect Dark features futuristic science-fiction weapons and technology. The game stars Joanna Dark, an agent for the Carrington Institute, a research and technology facility that develops weapons and gadgets for military and non-military use. Rival DataDyne HQ is a similar company, but with strong government connections, and seedier practices. The game begins with conflict between Carrington and Datadyne but gradually grows to a global and then galactic scale.

After some time in limbo, a prequel titled Perfect Dark Zero was finally produced by Rare for the Xbox 360, after Nintendo sold its' interest in the developer to Microsoft.

Expansion Pak
In an unusual feature, although the Expansion Pak is required to play the single-player game and most multi-player options, it is not required and limited multi-player functionality is available without the Expansion Pak. According to the manual, approximately 35% of the game is available to players without the Expansion Pak, although this number reflects features rather than content.