The fourth generation continues with the usual third game
that repeats most of the gameplay from Pokemon Diamond/Pearl but with an updated local Pokedex, Distortion World and other new features.
| Japan | September 13, 2008 |
|---|---|
| America | March 22, 2009 |
| Europe | May 22, 2009 |
The majority of Platinum follows the same story as Diamond and Pearl, however, there are some key changes. The beginning is slightly different - you meet Professor Rowan and his assistant before you get to the lake and he lets you choose one of the three starters. You then first battle your rival, rather than a wild Pokemon.
The order in which you tackle Sinnoh's gyms changes. In Diamond/Pearl your third gym battle was Maylene in Veilstone City, followed by Crasher Wake in Pastoria City, then Fantina in Hearthome City. In Platinum the third gym you come to is Fantina's then Maylene and Wake.
The local Sinnoh Pokédex is expanded upon, with 59 more Pokemon (old and new) including Rotom, Giratina, the whole Eevee line and new evolutions for older Pokemon like Dusknoir and Tangrowth.
To obtain the National Pokedex, you must have seen all 210 Pokemon in the Sinnoh dex. All Pokemon can be seen throughout the game in the wild and via trainer battles, except for event Pokemon Manaphy, who is added to the dex by reading the book in the Pokémon Mansion.
The biggest change in gameplay is the addition of a parallel universe called Distortion World.
Cyrus, the leader of Team Galactic, summons Dialga and Palkia at the Spear Pillar. This causes an apparent rip in the space-time continuum and Giratina briefly emerges from the wormhole.
Giratina and Cyrus go back into the Distortion World, and you must follow. It's a very trippy area, quite like an Escher painting. You can walk on the walls and the camera rotates as you jump around. Eventually you can catch Giratina here.
After completing the basic storyline, a new area called the Battle Frontier is opened, taking the place of the Battle Park in Diamond/Pearl. While the park in D/P only had basic battling, the Frontier has five different zones with varied rules. Clockwise from top, they are:
Never Lose! Keep Winning!
Win Consecutively with Rental Pokémon
Where Events Sway Outcomes
eventfrom the game board. Events include reducing the a Pokemon team's levels or HP, or inflicting a status condition. They may be applied to your or your opponent's Pokemon, so can be detrimental as well as beneficial.
Manage Battles with Castle Points
Let Each Pokémon Seek No. 1
The Battle Frontier was also carried forward to HeartGold/SoulSilver, meaning it appears in two separate regions.

Several Pokemon are not available during the course of the game, though they are available from either or both of Platinum's predessors, Diamond and Pearl.
A new batch of Move Tutors, who will teach moves to your Pokemon in return for colored shards. See here for details.
A Wi-Fi Plaza, which has various mini-games to be played over Nintendo WFC.