Pokémon Silver (along with its companion Gold) heralded the birth of an entirely new generation of Pokémon, and with it an entirely new world to explore. These factors are what made this game one of the best the Gameboy had to offer. This was also the first of the Pokémon series to feature two lands to explore as opposed to just one that had been seen in the progenitors Red and Blue. These games set the bar for every Pokémon game to come after and there are many who believe that Generation II is the finest Pokémon game released to date. With over a hundred new Pokémon plus all the 150 from the First Generation to capture, you'll have your hands full trying to fill the Pokedex. The only way to successfully do this however is to trade between Silver and Gold versions and there are plenty of chances to do so. 

You start the game in the Johto region and like all the games before, you get a choice of a Pokémon to start with and you go on an epic quest to catch all of the Pokémon, defeat the evil team that threatens them (in this case, Team Rocket again) and of course - go for the Pokémon League and become Champion. However this time the journey doesn't end there. With the addition of the Kanto region (the land that made Red and Blue version famous), a familiar land is up for exploration again along with 8 more badges to collect - adding up to a never-before-seen grand total of 16 badges. The gym leaders you previously beat in Kanto in Red and Blue also prove to be incredibly difficult opponents this time around, offering an intense challenge for only the most hardened of trainers. 

Essentially, Silver and Gold brought some of the best features to the Pokémon franchise - opening the doors for the new games that would bring even more Pokémon and adventures for years to come!

Generation II finally got a reboot recently in the form of SoulSilver and HeartGold for the Nintendo DS. The update brought back the familiar worlds of Johto and Kanto, while adding more new features (Pokethlon, Pokewalker, etc.) to make the game even better than it was before. Game magazines the world over praised the update for its updated visuals and the ability to trade Pokémon in from Ruby, Sapphire, Diamond, and Pearl versions. The update also brought back a familiar storyline from Pokémon Crystal - the tale of Suicune and one man's adventure to meet the Legendary Pokémon in the flesh. 

I just Pokemon Crystal but Pokemon Silver is good too , Great review though.