Pokémon Crystal follows closely the formula of the previous games, most notably Gold/Silver. You start the game in your home town and start capturing and training Pokémon aspiring being the greatest Pokémon trainer in the world. For that the player has the chance to choose the gender of the main character and choose which Pokémon he/she wants to start the adventure from three choices given by Professor Elm, Chikorita, Cyndaquil or Totodile. The player is able to buy Pokéballs and try to capture wild Pokémon, though only six can be held at a time for battle against wild pokemon and other Pokemon trainers. Any other pokemon captured when the belt is full will be stored and will be available for exchange at any PC found in Pokémon Centers.