you get it by beating the game and you have to go to dawn's house and talk to dawn's sister wait and one day dawn's sister will tell you about beldum. that's how I got my metagross!:)
you can catch beldum at route 228 with poke'radar
if you wanna catch beldum it a mass outbreak on route 228
Just breed a Beldum, Metang or Metagross with a Ditto in the daycare, or with one of the pokemon in the Mineral egg group.
beldum swinub eletrike skitty lotad nosepass smoochum
Wait until there is a mass outbreak of Beldum after you get the nationaldex
Get Beldum in the Massoutbreak evovle @ level 20 and into Metagross @ level 45
Beldum are in various locations in Pokémon Pearl and found during random daily events. If you go to Dawn or Lucas' house, his/her sister will say which location Beldum currently are for the random event.
route 228. you can find him at level 53 and he evolves at level 20 and beldum will only know take down. if this is'NT true blame Pokemon marriland they have got the info
Beldum is a Steel and Psychic type pokemon.
you use a pokeball in Pokemon dimand and pearl you can not get beldum only in Pokemon emerald you have to beat the elite four go to wallys house in mousdeep there will be a poke ball click on it and you have a beldum to get beldum in fire red and leaf green trade it in Pokemon ruby and Sapphire can get beldum too what are you talking about,you CAN catch beldum in diamond and pearl.you have to get the national pokedex and talk to your rivals sister in her house and you can catch it in a swarm Unfortunatly, it shares the " hardest to catch Pokemon" award with Skarmory"-thy both have 2.98 percent catch rates. Arceus is easyer to catch.
Talk 2 dawn/lucas's little sister [if you have the national dex]day by day until she says beldum then go 2 route 229 and search.Hope this helps!!!
you will find beldum in the cave