Pokemon: HeartGold & SoulSilver

Pokémon HeartGold Version (Japanese: ポケットモンスター ハートゴールド Pocket Monsters HeartGold) and Pokémon SoulSilver Version (Japanese: ポケットモンスター ソウルシルバー Pocket Monsters SoulSilver) are paired Generation IV remakes of the Generation II games Pokémon Gold and Silver.
Much like Pokémon FireRed and LeafGreen revisited the Generation I story of Kanto, HeartGold and SoulSilver retell the story of Johto, with the player's starting area being New Bark Town. While the games feature several expansions in key areas, the overall plot follows the same direction as the original Gold and Silver. Some aspects exclusive to Crystal are also included. Like FireRed and LeafGreen could link up with Ruby, Sapphire, and Emerald to complete the Pokédex by trading regionally exclusive Pokémon, HeartGold and SoulSilver can link up with Diamond, Pearl, and Platinum to obtain Pokémon unavailable in Johto and Kanto, such as the Sinnoh starters.

The games were released on September 12, 2009 in Japan, February 4, 2010 in Korea, March 14, 2010 in North America, March 25, 2010 in Australia and March 26, 2010 in Europe (this excludes the Netherlands, Luxembourg and parts of Belgium due to an in-game save error, with the patched copies later released on April 2, 2010)