Changes from Gen 1 to Gen 2:   - 100 new Pokémon (pre-evolution and evolved forms of Gen 1 included)  - 86 new moves (total is now 251)  - Dark and Steel types added  - Johto region  - Genders for Pokémon and breeding  - 7 new types of poke balls made from fruit  - Built in clock that allows for in-game events depending on time of day / day of week  - Shiny Pokémon  - Friendship introduced in Yellow, is a stat used by all Pokémon  - Pokémon can now hold items and use them in battle  - Pokémon virus... Apparently this is a thing  - Special Attack and Special defense split  - 4 containers instead of 1 in your bag plus Pokegear  - Can now use HM moves by interacting with an object  -Exp. Share is a held itemGold and Silver Story:  - Start in New Bark Town 3 years after Pokémon red and blue  - get an egg, red hair boy steals one of the starters  - Slowpoke tails, Kurt, team rocket is back  - Meet Bill, get an Eevee  - Red Garydos, Lance  - Team rocket tries to connect to Giovanni, you fight them through the radio tower, Red hair boy is there  - You disband team rocket, victory road, defeat red haired boy,  - go through Kanto, beat RedFavourite PokémonPokémon Crystal:  - Female choice for the player  - Animations for all Pokémon  - Battle Tower, Move Tutor, Online Capabilities  - Event Pokémon that could be caught  - Legendary Pokémon are part of the plot