No you cant challange him again UNLESS you didnt flee but you got killed by him you have seen him then AND you can capture him :)
No, they won´t
All Legendary Pokemon you can catch in Platinum: Giratina, Azelf, Mesprit, Uxie, Dialga, Palkia, Heatran, Regigigas, Cresselia, Darkrai, Articuno, Zapdos, Moltress, Regirock, Regice, Registeel, Shaymin, Arceus. (Darkrai, Shaymin, and Arceus can only be got by events).
Yes, but its for platinum only, if u have all the lake pokemons (Mespirt, Uxie, and Azelf) bring 'em to the cave... Click on the etching of the lake pokemon, and a special pokemon will appear, exlusive for Platinum Only
No. You just have to save Uxie, Azelf, and Mesprit, and beat Giratina in the reverse world. then, they'll let you go to Sunyshore city
well for national dex its dratini and for just black and white pokedex its tornadus you can only get it in black. its like thunderus in white it roams around and it is really hard to find
They will run away, and you have to find them in the wild and capture them.
uxie,hippotas,hippodon and snorlax(yes he is in platinum).
at the lakes
in the island in the middle of lake acuity
yes just do what you do to catch Pokemon at acuitys cave
I have Uxie on diamond and platinum and they where both caught with a ultra ball. If that wont work then use a mega ball.
The rare Pokemon which you can get before the Elite Four in Pokemon Platinum are Giratina, Mesprit, Uxie, and Azelf.
you cant unless u tade but someone else says if you defeat the elite four they come back even if u defeat them i dont know if its true or not hope it helped
giratina,mespirit,uxie,azelf,darkai,shaymin,cressellia
you cant get it in emerald, its only in diamond, pearl, and platinum
No, they won´t
if you make azelf uxie or mesprit faint you can't get them anymore unless u save in front of them then just turn ur DS off when u faint it