The games are set in the fictional world of Riddle, the habitat for 531 different species of Pokémon, some of which are exclusive to the region. Like all Pokémon games, these chronicle the adventures of a young Pokémon trainer as he/she trains and battles Pokémon while also thwarting the schemes of a criminal organization. The games add many new features, including the player's ability to create a "team" of his or her own after beating the game, while including older game concepts such as Pokémon Contests, Wi-fi Connection, and Pal Park. Both games are mostly independent of each other but feature largely the same plot and, while both can be played separately, it is necessary to trade between them in order to complete the games' Pokédexes. To unlock the "true" ending of the games, it is nec