Cyndaquil cannot be found as a wild one or a gift in Pokémon Black.
You can find Cyndaquil at Mount Stark on Pokemon Diamond.
You cant find one but you can choose Cyndaquil as your starter Pokemon.
You cannot find Cyndaquil in Pokemon Diamond so to get one, you will either have to migrate it or trade it from somebody
You have to trade.
If you talk to the Pokemon Professor you should get a 2nd Gen. starter.(Chikorita, Totodile, or Cyndaquil.)
you can find it in burned tower, it's called magmar. :) or you can choose cyndaquil at start of the game. it's the best Pokemon for start. ;)
There is a fanmade Pokemon Cursed Black version on cartrige, however there is a rom you can download (i can not find the website again, I will improve the answer when i do find it, sorry)
Does chaos black version even exist? Yes
You can't, you can only find that on the white version. You can find Tornadous in Black.
No, you cannot find cyndaquil in LeafGreen.
Braviary is only in Pokemon White. Pokemon Black gets stupid Mandibuzz -_-
Vullaby is a version specific pokemon, specific to Pokemon Black. You will need to get someone to trade it to you.