Pokémon Diamond and Pearl, the first Generation IV games, were released for the Nintendo DS. They first launched in Japan on September 28, 2006.
The games used features associated with the DS, including its dual-screen design and wireless connectivity. They introduced the Sinnoh region, new Pokémon such as Dialga and Palkia, and a larger Pokédex than the first three generations.
Diamond and Pearl also expanded online interaction. Players could use Nintendo Wi-Fi features for trading and battles, while compatibility with Game Boy Advance Pokémon games allowed selected Pokémon to be transferred through the DS’s cartridge slot and Pal Park.
The games are sometimes confused with their Nintendo DS follow-up, Pokémon Platinum, or with the Nintendo Switch remakes Pokémon Brilliant Diamond and Shining Pearl. The original Diamond and Pearl were 2006 Nintendo DS releases; the remakes arrived much later on Nintendo’s hybrid console.