Pokémon Brilliant Diamond and Shining Pearl’s Arceus Update is a Great Tie In

gamerant.com:

The wait is finally over, as players can now catch Arceus in its native Sinnoh region. Arceus was first introduced in 2006's Pokemon Diamond and Pearl, but this method of obtaining it is only first available now with an update to its remakes, Pokemon Brilliant Diamond and Shining Pearl. However, there's a catch.

In order to catch Arceus atop the Sinnoh region's Spear Pillar, players must first catch every Pokemon and face Arceus in another game, Pokemon Legends: Arceus. Some players are upset at this, wishing instead for Arceus to be attainable with only Legends: Arceus' save data present on the Nintendo Switch. The fact that Arceus is so difficult to catch really adds to the lore that it is not like the other Pokemon — the harder challenge is warranted. Arceus' addition to Brilliant Diamond and Shining Pearl is a nice bonus, and it allows the biggest mystery of the fourth generation Pokemon games to come full circle.

Pokemon Brilliant Diamond and Shining Pearl Giving Away Arceus and Darkrai

Pokemon Diamond and Pearl are the series' fourth generations of games. Like the other gens, these games contain multiple mythical Pokemon, like Darkrai, Manaphy, and Shaymin. Mythical Pokemon are special, in that while they may be present in the game's code, they are inaccessible to players until a special event or online distribution. Arceus is also a mythical Pokemon, and its event and related key item, the «azure flute,» are present in the files. Unlike the other Pokemon, Arceus' event was never released in the original games.

Sixteen years have passed since Pokemon Diamond and Pearl released initially in Japan. Many Pokemon games have come and gone. Arceus has been given away a handful of times through other events by this point, but