are role-playing games (RPGs) developed by Game Freak and published by Nintendo for the Nintendo DS.
The games add many new features, such as Internet play over the Nintendo Wi-Fi Connection and changes to battle mechanics and Pokémon Contests, along with addition of 107 new Pokémon.
The games are independent of each other but feature largely the same plot and while both can be played separately, it is necessary to trade between them in order to complete the games' Pokédexes.
Development of Diamond and Pearl was announced at a Nintendo Press conference in the fourth calendar quarter of 2004. It was forecasted to be released in Japan in 2005, but was shipped in 2006.
In promotion of the games, Nintendo sold a limited-edition Nintendo DS Lite in Japan, and held a release party celebrating their North American release. Most critics praised the addition of Wi-Fi features and felt that the gameplay, though it had not received much updating from previous games, was still engaging.
Reviewers were divided on the graphics, however, and the audio was criticized as being primitive.
The games enjoyed more commercial success than their Game Boy Advance predecessors: with around 18 million units sold worldwide, Diamond and Pearl have sold over 2 million more units than Ruby and Sapphire and almost 6 million more units than Fire Red and Leaf Green, while outselling their successors, Black and White, by over 2 million copies.
and consists of three basic screens: a field map, in which the player navigates the main character; a battle screen; and the menu, in which the player configures his or her party, items, or gameplay settings.
The player begins the game with no Pokémon or Poké Balls, but is given the choice of three Pokémon as a part of the story line.
Once Pokéballs are obtained, the player can capture more Pokémon using Pokéballs.