What is the difference between the Heart Gold and Soul Silver?

If you are wondering about the meaning of Heart Gold and Soul Silver, they are two types of game series released by Pokemon and they were released in 2009 as a paired game. They are a newer version of the old Gold and Silver games released in 1999. Heart Gold and Soul Silver now have a lot of new features and some new characters have been introduced into the game.

Another thing about these games is that, they now have quality graphics that are better than the old games. Although, Heart Gold and Soul Silver were released as a paired game, they still have some differences. The only difference between Heart Gold and Soul Silver is about different Pokemon used in the two games. Which means when one Pokemon is present in Heartgold, it will not be seen in the Soul Silver and when one Pokemon is present in Soul Silver, it cannot be seen in Heart Gold.