-If you mean when you beat him in Dirt.World ( Where Giratina Is )
Go and take the last gym in sunnyshore city.
- If you mean when you beat him in his HQ - Go to Mt.Coronet And up to spear pillar!
you have to beat all the gyms before the harthom one
you MUST beat the snow point gym leader to get the key. After you beat the snowpoint gym leader you go to the Team Galactic warehouse located right of the veilstone shopping center and battle and beat a team galactic guy. Then he will drop the key and you pick it up. I hope this was helpful to you! :}
keep on going east and follow him
you have 2 beat every single galactic grunt, included those in the galactic building in veilstone city(very important)
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 have to beat the galactic warehouse, and when/if you beat it you then go into the galactic HQ by entering from the galactic warehouse, and then Looker will come open the door.
You have to beat the Pastoria City gym first and then there will be a guy standing by the Great Marsh.That is the guy you need to chase :) Good Luck ; P.S This is PokemonHelper1
there is this team galactic guy in front of the HQ in veilstone and he would give it to after you talk to an another galactic guy who tells you that he gave it to his partner
You just have to beat all of the galactic grunts and you will be at the top.
beat the leader.
there's a guy in floarama meadow who gives you the windworks key after you beat galactic grunt
You have to beat team galactic at the sphere pillar. After that, the guy who won't let you go past him at the resort will be gone.