Pokemon leaf green is a game for the gba where you have creatures that can battle against other creatures,can be bred,can be fed snacks,can be trained,can evolve into counterparts. You battle trainers to earn money. You can then use this money to buy healing items. You battle gym leaders to see how your training is working otu for you. You earn gym badges. You then compete against the elite four to become a pokemon champion. The main icon of this game is venusaur.