Pokémon Gold & Silver were sequels to the original games. Set 3 years after the events of Pokémon Red & Blue, you played as a new trainer in the Johto region, travelling through once again collecting all 8 badges, beating the Elite Four and so forth. The antagonists were Team Rocket, making a return after disbanding three years prior. The game also included the whole Kanto region from the previous games after you defeated the Elite Four. It introduced 100 new Pokémon to the fold.

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Pokémon Crystal was the enhanced version of Pokémon Gold & Silver and was exclusive to the GameBoy Color. Like all enhanced versions, this game added onto the original, this time adding animations for the Pokémon, and the ability to play as a female character. It also fleshed out the story behind Suicune and the Unown. In Japan, it also featured the first online communication using the Mobile Adapter System GB.

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Pokémon Stadium 2 followed on from the standards set by the original Pokémon Stadium. It added all the new Pokémon, moves and features introduced in Pokémon Gold & Silver, and featured a lot of battles based on the games. It also included the much beloved mini-games, which this time allowed you to use the Pokémon from your games, and even a Pokémon Academy which taught you the intricacies of Pokémon battles

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Pokémon mini was a small console that had 10 unique Pokémon games released on it. These games were all small in scope and ranged from puzzle games, to mini-games and even racing games and adventure games. Many of the games were only released in Japan

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Pokémon Puzzle Challenge was a portable Pokémon Panel de Pon game. Using the mechanics of Panel de Pon, it had you play through the Johto region, defeating gym leaders by beating them in the puzzles. It had a dozen Pokémon to capture and find. It also had missions to complete

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Pokémon Card GB 2: Here Comes Team Great Rocket was a sequel to the original Pokémon Trading Card Game and had you return to the island, once again facing Club Masters, but also included an antagonist team, Team Great Rocket, to face off against. It also included a new island with new Club Masters to face. It included all the cards from original, as well as more Pokémon cards from early sets.

The Johto League:
After losing to Gary Oak, Ash decides to head to Johto, the place where trainers are tougher, in order to beat him once and for all. Joined by his friends Misty & Brock he goes in search of new adventure and brand new Pokémon. When he gets his partners Bayleef, Cyndaquil, Totodile and Noctowl he goes and beats the 8 gyms of Johto whilst entering in multiple town fairs and contests. Ash then gets to the Johto League Silver Conference and battles his hardest. He beats Gary in a tough 6 on 6 battle but loses to a guy from Hoenn, Harrison and his Blaziken. Finishing in the Top 8, he then splits from Misty, who needs to take over the Cerulean Gym, and Brock, who has to go on an errand. He gets new incentive to battle harder as he sees Ho-oh fly to Hoenn so he leaves all his Pokémon except Pikachu at Professor Oaks and heads to Hoenn alone for a new adventure!

The series are known in the west as Pokémon: Johto Journeys, Pokémon Johto League Champions and Pokémon Master Quest.