Pokémon Crystal is the enhanced remake to Pokémon Gold and Silver. This makes it part of the second-generation of Pokémon games. It featured the Battle Tower, and also focused on the Pokémon Suicune (featured on the game's boxart). A remake of the Gold and Silver games was released in Japan in September 12, 2009 for the Nintendo DS and in March 14, 2010, known as Pokemon HeartGold and SoulSilver.
In addition, this was the first Pokémon game that allowed the player to play as either a boy or a girl and has Kurt able to make multiple Poké Balls at once. At the start of the game you receive a PokéGear, gear that has your mobile and Poké Balls in it.