Pokémon Gold and Silver/New Stuff

Pokémon Gold and Silver introduce:


 * 101 new Pokémon to the game
 * A day and night system
 * Days of the week
 * A phone
 * A radio
 * Colour
 * Pokérus
 * Many new moves
 * The dark and steel type of Pokémon
 * A Pokégear (with a built in map)
 * Roaming Pokémon e.g Suicune
 * Decorating your room
 * Hold items
 * Evolution by holding an item
 * Clocks
 * Registered Items
 * Printing (from The Game Boy Printer)
 * Lottery Corner
 * Apricorns (special Pokéballs)
 * Pockets in the bag
 * Pokémon Eggs
 * Mystery Gift (via infra-red)
 * Shiny Pokemon
 * Pokérus

New features in Crystal include:


 * Animated Pokémon graphics
 * A choice of Boy or Girl
 * New Suicune quest
 * New Ruins of Alph Quest