Gastly learns night shade on level 15.
No, Gastly cannot learn to fly.
No Gastly cannot learn fly in Pokémon HeartGold.
Gastly can learn Perish Song only has a egg move, you have to breed a female Gastly with a male Misdreavus that knows it. When the egg hatches the Gastly will already know the move.
night shade, spook.etc
Gastly learns Mean Look on level 13.
Yes gastly learns mean look when he envovles to haunter
meen look
Is learns ir when is gastly at level 8. I'm trying yo make my level 52 Haunter to learn it but I don't know how. I already go to island two for the mushroom man but he only teach him lick, night shade, spite, conduse ray, shadow punch or destiny bond. No mean look as you see. If you need it rush, try hatching a gastly and grouw him up to lv. 8 he will learn mean look. Or try carching a Golbat. Hope it helps. Blessings
yes
level 8
You can find a gastly in sprout tower at night in heart gold in soul silver i dont now.
u cant but gastly knows it and golbat learn it after a while aswell u catch gastly in the dim cave on the pokewalker