in the Galactic warehouse on the ground
no
No you can delete fly by going to the move deleter then you can migrate the rayquaza to diamond or pearl or platinum
It can't fly
first you have to obtain HM01 (fly) then select the TMs & HMs pocket scroll down the list to reach the HMs select HM01 fly and teach it to a flying type Pokemon e.g staravia select a move you no longer want to keep and replace it with HM01 fly glad i helped :D
There isn't an HM Move Charge in Platinum.
In The Galactic Warehouse.
you need to fly away.....
In Platinum, it is fly.
Unfortunately, No.
NO
No
go to pastoria city