Reach the top of Mt. Coronett. There will be, i think 3 bosses, then you will approach DIALGA and you use the Master ball.
Heatran is a ledgendary in Pokemon platinum.
Giratina
ho-oh and lugia
Well u can catch every ledgendary, beat the elite four, become the champion, fill up ur pokedex, and have every TM and HM.
how do you catch a mewtwo on Pokemon platinum
trade or clone masterballs and then catch but some are special events
you cannot catch the 3 regi's in Pokemon platinum you have to catch them in Pokemon emerald then transfer them to Pokemon platinum. thnx
yes. you must go to the starting area with your ledgendary after ou catch at least 200 pokemon. talk to the fellow and for 500k he'll make your ledgendary shiny
Ditto can't breed with Pokemon that don't evolve, ledgendary Pokemon, and baby Pokemon who are on their first form.
Defeat all the gym leaders and then legendaries will appear on the maps.
You can't actually catch him in Pokemon platinum but you can migrate him over to platinum if you have him in another game
you can't catch him in platinum but in soulsilver or heartgold you can catch him then trade it to platinum.