You can't but u can catch mew-two in the cerulean cave after beating all 16 badges in the Kanto region it is at level 70 so bring your strongest Pokemon
You can't catch Mew normally in-game without an Action Replay or an event...
You Can't.
The only way you can get mew in heartgold is by trading, or getting it in an event. OR you could cheat
via an event that has already ended, or could u check on wifi if its still running. if it isn't you only can with cheats or migrating ( from an event or 3 gen games that already ended) or trading
mew is behind the truck near the ss anne dont worry its in fire red but good luck trying to get there if u find out tell me
in cerulean cave the same same as in Pokemon leafgreen,and firered
Yes you can if you have Mew in your Pokemon SoulSilver/HeartGold You can put Mew in the Pokewalker.
An exclusive Mew is coming out for mystery gift for the games Pokemon Heartgold/Soulsilver in Japan only.
No you'll have to transfer it from LeafGreen/FireRed or trade it from SoulSilver/HeartGold.
you can't but if you have a wii there is a wii app Pokemon ranch that is avalible for about 1,500 points (15$) if you get max ranch on that app mew should appear
you have to trade them over
To get a Mew in Pokemon Heartgold, you could do it through a Nintendo Wi-Fi event.
Yes you can if you have Mew in your Pokemon SoulSilver/HeartGold You can put Mew in the Pokewalker.
yes
An event
yes
Mew
mew
Mew can't be catched in Pokemon heartgold, only mewtwo.
you cant for heartgold or soulsilver suckers
you can't
Nintendo event
You cannot get one.