It's a complex way, but you first have to beat the Elite Four(need national dex first). First, after you beat them, there will be a new area to explore on Route 214. It's called Spring Path on your map, and there's a small lake called Sendoff Spring. The cave inside the lake is called Turnback Cave. It's filled with fog, so you might want to use defog. This is a cave filled an odd maze. The way to Giratina is this: You have to pass by 3 different pillars before you enter 30 rooms. You can't exit a room the way you entered, otherwise you'll be sent back to the entrance. It's not as hard as it seems, considering how many rooms you can go through. The second pillar will say how many rooms you've gone through to get to it. After you pass the 3rd pillar, take any door (except the one you entered from) and you'll instantly run into Giratina. It won't battle unless you walk up to it and press A. You'll probably want to save before you battle. A Flying/Normal Pokemon will probably work best against it. It'll only be affected by one of Giratina's moves. Good luck!
The best ball to catch Giratina is the Master Ball but the next best and effective options would be the Dusk Ball or the Ultra Ball.
turn back cave(after u beat the eleat 4 )
neither of them is better, they are both the same, but in diamond, you catch dialga, and in pearl, you catch palkia, and you can catch different Pokemon in each game for example: you can catch this Pokemon in diamond, but not pearl but: you can catch this different Pokemon in pearl, but not diamond
NO!!!!! YOU CAN ONLY CATCH PALKIA ON PEARL you can't catch dialga on Pokemon pearl but you CAN trade it you only get both in Pokemon platinum
You can't catch Murkrow in Pearl. Murkrow is a Diamond-only Pokemon. Just like Misdreavus is a Pearl-only Pokemon.
You catch Garatina, Dialga,Palkiia,and all the lake Pokemon but mainly Garatina
Not sure who garatina is. I know that there is a Giratina in the turnback cave though.
disortation world
You cannot change his from in Pearl only Platinum.
The best ball to catch Giratina is the Master Ball but the next best and effective options would be the Dusk Ball or the Ultra Ball.
you must have national dex and must have defeated Pokemon league
if you want more Pokemon yes because different Pokemon appear in each game apart from dialga and palkia
turn back cave(after u beat the eleat 4 )
NO you cant catch syther in Pokemon pearl
You can't catch a charizard in pokemon pearl.
neither of them is better, they are both the same, but in diamond, you catch dialga, and in pearl, you catch palkia, and you can catch different Pokemon in each game for example: you can catch this Pokemon in diamond, but not pearl but: you can catch this different Pokemon in pearl, but not diamond
you can certainly catch Dioxies in the game Pokemon pearl