It's been awhile since I got to play my Platinum ( because my brother is playing it.) But I'm pritty sure you get the key in the base in the city with the big drug store department ( can't remember the towns name) If I'm wrong, it might be in another base. I'm sorry if I didn't help at all.
First you need to speak to that dude outside team galactic's HQ and he'll drop a key. Go to where you battled with that girl and go into the little warehouse thing and use the key with the door. Then just keep going until you get the key.
The grunt will drop it when you talk to him that is by the satalights after you visit the three lakes. Hope this helps. Good luck. If you have any other questions please feel free to email me at countrygurl0687@hotmail.com. Label the subject as Pokemon question other wise it will be marked as junk.
you ll find it in the galactic warehouse in veil stone city. it ll be shaped as a poke ball on the ground , just like every other thing you find.
After you get the 7th gym badge, go to galactic HQ in Veilstone City. There will be a grunt in front of the building, talk to him and you will get the key.
well u talk to a grunt outside of the HQ and he drops the key
go to he ware house Looker will give or use a key and a door will open go in and battle the grunts then go up the stairs and then find the key
the grunt in front of the HQ when you talk to him he will run away and drop the key =0
You have to go to this electricity place you find a team galactic person and he'll give you the key then go in and battle him
after you get galactic key go to the HQ with sattilite dish go to the door
after u beat the 7th gym leader go back to veilstone city and get the storage key of the team galactic guy standing outside the big headquarters he drops the key then u go into the warehouse and get the galactic key
You find it in the Galactic Headquarters after they capture Azelf, Uxie, and Mesprit.
To get into the Team Galactic HQ in Pokemon Diamond you will need the storage key the Galactic Grunt leaves behind, and the Dusk Stone. If you can't get the key, it may mean you have not completed a mission.
defeat+guy+in+front+on+galactic+fort+thing+he+willl+drop+the+key+and+boom+you+have+it+hope+this+helps! defeat+guy+in+front+on+galactic+fort+thing+he+willl+drop+the+key+and+boom+you+have+it+hope+this+helps!
the galactic key is in somewhere in the game N.M.I
You will need Galactic key and this how to get Galactic key you will need to talk to a Galactic team mate by the Galactic HQ.
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When you go to the team galactic veilstone building there will be a galactic grunt and you talk to him then he'll run away and he accidentally drops a key.
In the galactic warehouse to the left of the Galactic HQ
go to galactic headquarters in veilstone city then you need a galactic key and the storage key to open the door of team galactic's door
you go to the team galactic ware house
its in the galactic ware house in velistone
u catch girantina and then after that you go to veilstone city and go talk to the team galactic person in front of the galactic warehouse I think galactic warehouse it is one on the team galactic places in veilstone city and then he will go somewhere and drop a key which it will be the storage key. Hope this helped and sorry I cant think of the name of the team galactic place it is the biggest building of the team galactic places (in veilstone city)
after you get galactic key go to the HQ with sattilite dish go to the door
you get the special key through the mysterygift
talk to the team galactic guy in front of the team galactic building.(In veilstone city)