You must transfer it from your Pokemon emerald, ruby or sapphire with Pal Park
A code for Entei...sorry but there´s no Code for a Entei in Diamond!
You have to migrate it from Pokemon FireRed, LeafGreen, or any other Pokemon game that you happen to have an Entei in. Entei can't be caught in Pokemon Diamond or Pearl. Sorry.
u cant stupid.......
You have to trade or migrate. You can't catch them in diamond.
Sorry, but Entei can not be obtained in Pokemon Diamond and Pearl itself, you must transfer it from old GBA games and use the Pal park in DP to catch him.
You can't.
you cant catch entei on Pokemon pearl. entei is a johto Pokemon and Pokemon pearl is a sinnoh game. the only way to getentei is to trade it over from another game games compatible are Pokemon diamond, Pokemon platinum, Pokemon soulsilver and Pokemon heartgold. the last two i am sure you can get entei. (i have seen it in the wild)
You get Entei only on Diamond by Transfer it from LeafGreen and FireRed or trade it with Soulsilver and HeartGold
if you want Entei in Pokemon Diamond/Pearl you'll need a Pokemon FireRed/ LeafGreen that you started out with Bulbasaur. In FireRed/ LeafGreen if you started out with Bulbasaur [Grass-Poison] after you defeated the Pokemon and if you run into Entei in the wild capture it and migrate it into to Pokemon Diamond/Pearl through Pal Park. If you want to migrate in Diamond/Pearl you'll need to see all 150 Pokemon yes both Dialga and Palkia. You'll see Dialga in Pearl from an elderly woman who's shows you its picture and the same with Palkia in Diamond from the same elderly woman in Celestic Town. This adds its data to your Pokedex and less Pokemon to see in Diamond/Pearl.
entei is a roming Pokemon of Johto. to catch it u have to chase it. if u run or use your bike it will run somewhere else. it is similar to catching Mesprit in Pokemon Diamond,pearl,or platinum.
Entei cannot be encountered in Pokémon Diamond but must instead be transferred from either Pokémon FireRed or LeafGreen. After defeating the Pokémon League and gaining the National PokéDex, Entei will be roaming Kanto however you will encounter Entei only if you chose Bulbasaur as your starter Pokemon. If you chose any other Pokémon to begin with, you will instead encounter a different Legendary Beast.
To get them, transfer them from Pokemon Fire Red and Leaf Green.