in the national pokedex: arceas in the regular pokedex: dialga
To catch every Pokemon, you need action replay for the few last diamond legendaries. You will need Pokemon fire red/leaf green and emerald. Migrate them to Pokemon diamond. In Pokemon diamond, fill up your pokedex by catching Pokemon normally or with poke radar, or use gts. It will take a long time to catch all Pokemon
if you meen the national dex then you need to find every Pokemon in the sinnoh pokedex
manaphee
A Pokemon adventure on Pokemon Diamond Verison can last forever if you wanted it to.
Arceus
the same pokemon they had last time
Garatina...
Pokemon diamond and pearl chocha culo teta bicho
you need another ds and diamond, then trad the Pokemon to pearl. jay17
you need to hatch a togepi in soulsilver or heartgold then trade it to pokemon diamond
No
3 words look for it