No, because Pokemon Yellow is only able to connect to Pokemon Red and Blue. I think Silver and Gold, too. Pokemon HeartGold can only connect to the DS Pokemon games. Besides the migration from Gameboy Advance.
there is no such thing as yellow
Yes.
There is no such thing as a Yellow Forest.
yes, you can connect with HeartGold.
Yes you can. You can also do that with Pearl, Soulsilver, and Heartgold.
It is a Wi-fi gift
Yup, Pokemon diamond and pearl can connect! Even platinum and Heartgold soulsilver! Its like crazy!
No. Missingno is a glitch pokemon found in pokemon Red, Green, Blue, and Yellow.
No Hd can't be transfer to 3d, but the pokemon an be trade to that game though.
Start up pokemon, go to "Connect to Pokewalker" and select "Return from stroll" Follow onscreen instructions to connect, and voila.
You can transfer Pokemon, but you can't trade. Since HeartGold was released before Black, HeartGold doesn't know Black exists. However, Black knows HeartGold exists. You need to be on Route 16 in Black version, which requires beating the Elite Four.
Yes!