What is the difference between Pokemon Diamond and Pokemon Opal?

Question

What are the starting pokemon too?

Answer 1

You must be talking about Platinum. I myself don't know all th differences, but you can try looking them up here:

http://bulbapedia.bulbagarden.net/wiki/P...

Answer 2

opals a fake game

Answer 3

They are the same except for having different Pokemon.

Diamond

Seel      

Dewgong

Aron

Lairon

Aggron

Murkrow

Honchkrow

Scyther

Scizor

Larvitar

Pupitar

Tyranitar

Poochyena

Mightyena

Kecleon

Cranidos

Rampardos

Stunky

Skuntank

Dialga

Opal

Spheal

Sealeo

Walrein

Slowpoke

Slowbro

Slowking

Misdreavus

Mismagius

Pinsir

Bagon

Shelgon

Salamence

Houndour

Houndoom

Stantler

Shieldon

Bastiodon

Glameow

Purugly

Palkia

Answer 4

Hey pokemon opal is a fake game...

Do u mean pokemon pearl?

The difference between pokemon diamond and pearl are the pokemon which appear to each one. Although near all pokemon appear in both games there are some that appear in diamond and some that appear in pearl. These are:

Diamond only

Seel

Dewgong

Aron

Lairon

Aggron

Murkrow

Honchkrow

Scyther

Scizor

Larvitar

Pupitar

Tyranitar

Poochyena

Mightyena

Kecleon

Cranidos

Rampardos

Stunky

Skuntank

Dialga

Pearl only

Spheal

Sealeo

Walrein

Slowpoke

Slowbro

Slowking

Misdreavus

Mismagius

Pinsir

Bagon

Shelgon

Salamence

Houndour

Houndoom

Stantler

Shieldon

Bastiodon

Glameow

Purugly

Palkia

Answer 5

Pokemon Opal is a fake while Pokemon Diamond is legit unless the Pokemon diamond you have a something that looks like a dragon with a gem on the cover then that's fake too. They sell fakes like that constantly.