You can infact get mew all 3 ways either trade do event or use action replay only ways plus there is another do the pokemon ranch and you get mew.
I will trade you one I got a box of them
Yes you can get a mew there r 2 ways 1st action replay codes 2nd wi fi event
I have every legendary but mew and will trade anything you want even my arcius anything and another way but long to get mew with out going to an event or the cheay code is have 2 sp's red blue or yellow ruby sapphire or emerald and heart gold a ds or dsi and you trade your mew from your red blue yellow into your ruby sapphire or emerald then migrate it into your heart gold. I also have some doubble legendarys I'm willing to trade if I like the pokemon
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The only way to get mew is at special events
You get in in a wi-fi event on the japanese version of the game, it should still be running. You get a lv 5 mew. So far it doesnt do anything in-game but its still early.
There should be an event coming to the us soon to get a mew and if not do what the person above me said to do and fill Pokemon ranch for a mew
There's a few annoying ways to get it,
If you do the mew glitch from pokemon red and blue (which is shown on youtube) then trade it from cartridge to cartridge until you get it on a gba game, then you can migrate it to your hg ss through pal park.
Another similar method is to catch it in pokemon emerald on faraway island and use pal park again.
The easiest way is to wait for a pokemon event, were you use wifi to "download" it onto your game, but you have to look out for dates and places (for example, mcdonalds, toys r us and the official pokemon website are usually responsible for distributing events).
Hope this was a help x
If you do the mew glitch from pokemon red and blue (which is shown on youtube) then trade it from cartridge to cartridge until you get it on a gba game, then you can migrate it to your hg ss through pal park.
Another similar method is to catch it in pokemon emerald on faraway island and use pal park again.
The easiest way is to wait for a pokemon event, were you use wifi to "download" it onto your game, but you have to look out for dates and places (for example, mcdonalds, toys r us and the official pokemon website are usually responsible for distributing events).
Hope this was a help x
Events,action replay,trades ... Trades are the best way of getting event pokemon like mew, just ask someone who already (If he has mew he has probably hacked) has mew.
I don't know if you could get mew in heart-gold.but I do know you could get mew if you put 999 pokemon in my pokemon ranch in the wii shop channel
You have to get mew from pokemon ranch but it only works for diamond and pearl in america then trade it to HG or SS