Official Nintendo events are events in which you can obtain rare or legendary Pokémon, they're usually held multiple times a year. You need a wi-fi connection to partecipate, without you can't.
You can't find rayquaza in pokemon platinum.
yes
pokemon events, or trade the event pokemon from a diamond/pearl/platinum game.
You mean Dialga?
you can't
You can't get Darkrai in any Pokemon game without cheating or hacking.
hey Pokemon platinum... where did you download the Pokemon platinum game? can you tell me?
The events for Shaymin are no longer supported for Pokemon Platinum. This is the same for all other events as support for a Pokemon game stops as a new one comes out.
Toys 'R' Us is not a shop available in any Pokemon game. The relationship between Toys 'R' Us and Pokemon Platinum is that they tend to host Nintendo Events. In these events, the means of obtaining legendary Pokemon (or Rotom) are given to customers. Although the store has a reputation for hosting events, it does not appear in Pokemon.
You migrate it from your GBA game.
Try overwriting it
Trade the event Regigigas to Pokemon Platinum then get the national pokedex and it will unlock certain events in the game.