Where do you catch Dialga and Palkia in platinum?

Answer 1

you need to beat the Pokemon league. Then you go to mt. cornet and then go to spear pillar. then you catch them. you catch them at level 70. If you accidently killed one go to eternal city. then go to the top midde house of one of the houses. you should see this old lady. she wil let you battle them. if they die again there is no chance. Enjoy battling!

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Answer 2

if you have Nintendo ventor (that is like wi-fi)

you catch them at the cave of ferity.

but if you have wi-fi instead,you catch at stark mountain (if caught cressilia and defeated heatran)

but theese rare ones dialga and palkia,can recharge,because you just need to ruturn it at the safety pillar (if caught arceus heatran dialga palkia uxie mespirit azelf cressilia)

but when i sed kill heatran

and now i say you ned it

bcoz you kill it at stark mountain,then you catch one at spear pillar.

so go to safety pillar and go straight ahead to the azelf Flute,blow into it,and a diamond cystal will comeup,then a crystal pearl,then a shiny white crystal containing the ones you've already caught,so you can catch then gain,dialga and palkia

you catch the dialga lv.90 palkia lv.90 and arceus lv.110.

and also a big dark purple crystal appear's containing the Pokemon (kinds not rare)

the Pokemon dakrai,gengar,mismagius.

bcoz the purple crystal stayes there bcoz first you catch gengar lv.95

then mismagius lv.100

then darkrai lv.X

lv.X is lv.150.

then at lv.167 it stops being X

you can only catch them with either action replay or wi-fi or Nintendo ventor.

cannot get them until nyou have heatran lv.120

dialga lv.110

palkia lv.90

arceus lv.X

gengar lv.60

and a garchomp any lvl.

and im afraid im so sorry if you cannot catch then bcoz don't have action replay or ventor or the wild drolocanoon the new Pokemon or wi-fi.