Gold/Silver/Crystal
Pokemon Gold and Silver Were the first Pokemon with the second generation of Pokemon. In this game you have to be the boy. You can start with Cyndaquil, Totodile, or Chikorita. Pokemon Gold and Silver are for GBC(Game Boy Colour).
Pokemon Crystal is like a remake of Pokemon gold and silver. Pokemon Crystal is also the first game where you have the option to be a girl or a boy. It is also The first game to have animated sprites. (sprites with movement) Also in this game you can travel to the Kanto region! Pokemon Crystal is for GBC(Game Boy Colour).