you can find it in the grasses of johto after releasing it from the burned tower
Entei is a powerful Fire-type legendary; however, it mainly flees in Pokemon FireRed, LeafGreen, Silver, Gold, Crystal, Heartgold, and SoulSilver. It wouldn't hit your Gastly, unless Mean Look is used. You can catch Entei with any Pokemon, because it just requires at least a Poke Ball to attempt to catch it. Be careful, though, if Entei doesn't run or get caught, it can easily defeat Gastly.
You can only catch Vulpix in SoulSilver, not in HeartGold. You can catch it on route 36 and route 37.
Yes it is possible if you have a charizard starter you can catch the silver on it is possible you have to put it to sleep then gradually catch it
entei is ONLY if you have a Bulbasaur as a starter
you can get celibi on heartgold only from a wi-fi event
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)
No you cannot catch Entei in Pokemon Emerald.
You can't catch entei in Pokemon black he is on a different version
You have to go to ecruteak city and meet eusine. Then entei won't be too far behind. You have to battle entei once you see him. You have no choice. Its not easy to beat him. I had to resort to my sixth Pokemon to defeat him!
after that, someone at the battle frontier will tell you about latias and latios. then, latias will start roaming kanto.
Ho-Oh Lugia Suicune Articuno Zapdos Moltres Mewtwo Kyogre Raikou Entei Latias
No, you can catch Entei without catching Moltres.
after you catch a glimpse of entei, raikou, and suicune at the burned tower in ecruteak city, you can track entei and raikou using your map.
Entei is a powerful Fire-type legendary; however, it mainly flees in Pokemon FireRed, LeafGreen, Silver, Gold, Crystal, Heartgold, and SoulSilver. It wouldn't hit your Gastly, unless Mean Look is used. You can catch Entei with any Pokemon, because it just requires at least a Poke Ball to attempt to catch it. Be careful, though, if Entei doesn't run or get caught, it can easily defeat Gastly.
You cannot catch Entei in Pokémon White because it is not available for capture.
Yes, you can keep on attempting to catch Entei provided you keep on defeating it. Every time you defeat Entei in Pokémon SoulSilver, you can beat Lance and Entei will respawn.
You can't catch Rotom in heartgold.