Piplup does not exist in Pokemon LeafGreen or FireRed.
The only way to get the Legendary Beasts in Pokemon Pearl is to find them in FireRed, LeafGreen, HeartGold or SoulSilver, catch them and then migrate them over to Diamond via Pal Park.
You cannot catch houndour in Pokemon leafgreen either get one from Pokemon emerald or Pokemon colosseum.
That item doesn't exist in leafgreen.
It is not a legendary Pokemon. Rather, it's a common Pokemon that you can easily find in the wild.
The legendary birds are found at the power plant, mt ember and seafoam islands.
Zapdos arcticuno moltres
go to your home and you will find them waiting for you at your door
they are birds not wolves
Articuno (sometimes wrongly spelled as Articoono) is a legendary bird Pokémon. You can find it in LeafGreen version in the Seafoam Islands.
first you need your starter Pokemon be a squirtle. Then you have to beat elite 4. Then just run into it. GOOD LUCK!!!!!!!!!!!!
Sucicune (sometimes wrongly spelled as Sucicune) is a legendary water type of Pokémon. If you chose Charmander, you can find him roaming Kanto in LeafGreen version.
Entei, Raikou and Suicine are often referred to as the Legendary Beasts or Legendary Dog pokemon. They aren't in Diamond, so you'll have to trade or migrate them. You can do this from the following games: FireRed/LeafGreen, HeartGold/SoulSilver and OmegaRuby/AlphaSapphire.
no unless you have an action replay. That might not even work.
No you can catch one of the legendary dogs anywhere in kanto, wich one you will find depends on the weakness of your starter pokemon
Piplup does not exist in Pokemon LeafGreen or FireRed.
You can't, they are exclusive to pokemon red, blue, yellow, fire red and leaf green