Pretty much all except the legenderies
the ones you can catch are: groudon, kyogre, rayquaza, regirock, regice, registeel, latios, latias.
you have to catch all of the pokemon in diamond or SEE all of the pokemon
no you cant find deoxys in sapphire. but u can go to 4shared and download a game called Pokemon sharrowns.in it you can catch most of all legenderies.
The only way you can see all the Pokemon on diamond is by going into the GTS and global trade different Pokemon.
you've gotta be crazy if you think someones gonna write all the Pokemon you can catch in diamond
All of what?
You can get Pokemon diamond for PC from www.roms.zophar.net/Nintendo-ds/all
yes you need to get the 3 legenderies regice regirock and registeel which can be found on Pokemon emerald ruby and Sapphire
no you cant get cheat for all the pokemon.
Rayquaza, Kyogre, Groudon, latios or latias. Any other legenderies can be traded from other games, Nintendo events, and Colosseum.
There is a list of all TMs (and HMs) that can be found in Pokemon Diamond in the Related Links section of this answer.
No, not all Pokemon in Diamond can learn Hyper Beam.
there is no such code.
then you beat the game
Pokemon Diamond, Pearl and Platinum are all set in the Sinnoh Region
the Pokemon in diamond are sinnoh Pokemon i suggest http://Pokemon.marriland.com/diamond_pearl/pokedex to see all of them
no they can not come back the best way for you to get thm is to save before vs them
get an action replay, get the Pokemon modifier cheat for it, then catch all the Pokemon.
There is no action replay code of getting all of the Pokemon in Pokemon diamond version. But there is an action replay code of getting all Pokemon in the pokedex.
there is not a cheat to get all Pokemon but there is a cheat to get certain Pokemon
The most powerful Pokemon on Pokemon Diamond/Pearl is the most powerful Pokemon of all too. It is ARCEUS
Not Every Single one