easy
I already beat the game and I cant so u cant.If u like turning into a Pokemon then play Pokemon mstery dungeon explorers of time/darkness or Pokemon mstery dungeon blue/red recsue team.
Use an action replay
at the pokemart with the man dressed in green
u don't get the mistery gift in Pokemon platinum you get it in fierd red version u go to the shop that you get the package for professor oak you write on the papper link whit all together and you will get the mstery gift the rest i don't no
in the pokemart after you use mystery gift.
All you got to do is if its from the wii go to mystery gift on the main menu then go to Recive VIA wireless.
In order to unlock Mystery Gift in Pokemon Diamond/ Pearl, you have to go to Jublife city, enter the TV station, and talk to the man on the third floor. One of them will ask your oppinion about TV. Answer Everyone Happy. He will then ask for a statement about TV (or something like that). Say wifi connection. Mystery gift will then be unlocked and can be used on the main screen. When you enter it, you will be asked if you want to receive a gift via wireless, from a friend, or through wi-fi. Unfortunatly, I have no idea how to give gifts. My guess is that any hacked or event items you have (like Oak's letter or Azure flute) will be given to you.
yes
killing and a mstery of the investigation
use the poke radar in route 224 warning you must have mystery gift
i dont now but i ask the same question me too
use a action replay or go to a Pokemon event or try to use the mystery gift hope i helped