the games added many new things, such as a new computer storing system. there were also 100 new pokémon added. the battle system was changed a lot, and added double battles. abilities and natures were added to make the game more interesting and affect the way pokémon grow and develop. pokémon contests were a new feature, where you perform moves for a judge, and are rating on their "condition", like a beauty pageant. sweets called pokéblocks were added to treat pokémon.