The core gameplay of Pokémon Diamond and Pearl will instill a feeling of déjà vu for anyone who has played one of these games before. If you haven't, expect lots of turn-based combat as you battle to try to capture wild Pokémon, battle to overcome a rival trainer, battle to win gym badges, battle to overcome a woefully underdeveloped syndicate of villains and battle to become the champion of all things Pokémon -- and once you earn that honor, you can battle some more, because new areas unlock upon completion of the main storyline. It's not all about fighting, though, as collecting as many different types of Pokémon as possible continues to be a major hook to the games, and to that end you'll travel both day and night, to a variety of different locations, trying to hunt down some of the more elusive varieties. As always, the formula is basic but somehow very addicting, and the touch screen controls are implemented fantastically (the large buttons are a nice touch).
Also making a return are Pokémon contests, in which well-trained critters can take a break from fighting and challenge each other is a sort of beauty pageant, where they are judged on their appearance, their dancing ability and their techniques in three different rounds. One of the big gameplay hooks is the multiplayer mode, where you can not only battle against local opponents but can also challenge players all around the world courtesy of the Nintendo Wi-Fi Connection. In addition to battling opponents online, players can trade, communicate, and even establish secret bases in an underground area of the continent, complete with the ability to set traps. In comparison, the two versions are essentially the same, with only a few slight differences in terms of Pokémon that can be challenged and acquired. The gameplay may not exactly be groundbreaking, but the classic Pokémon formula has been refined enough to net Diamond and Pearl a high score in this department.