All i know on the hidden abilities is that you go to the Pokemon Dream World on Pokemon.com, you go the the global link, do all this stuff to register yourself but in there in the island of dreams you can find certain Pokemon with there hidden abilities.
On serebii.net
shows all the hidden pokemon and all the things you should know (wi-fi events, ECT.)
that will answer your question
No, there are no underwater routes in Pokemon HeartGold or SoulSilver. The HM Dive is not available in Pokemon HeartGold or SoulSilver.
Oh yes you can find it by googling
You'll need to trade for it from Pokemon HeartGold. It is not avilable in the wild in Pokemon SoulSilver.
you can find Bill in heartgold and soulsilver, but he will only tell you how much space you have left in your PC Box(he's in Goldenrod city
The hoothoot is better
Pokemon Heartgold and Soulsilver are the remakes of the old Pokemon Gold, Silver, and Crystal series. Pokemon Heartgold and Soulsilver are for the Nintendo DS.
No, there are no underwater routes in Pokemon HeartGold or SoulSilver. The HM Dive is not available in Pokemon HeartGold or SoulSilver.
he is not in Pokemon soulsilver or Pokemon heartgold
SOulsilver
That is impossible in Pokemon HeartGold and SoulSilver.
You can only go to Johto and Kanto in Pokemon Heartgold and Soulsilver
Pokemon Soulsilver and Heartgold cost about 35 to 40 dollars on the US
The card key in Pokemon Heartgold and Soulsilver is located in the Goldenrod Underground.
The Quick claw is located in the National Park in Pokemon Heartgold and Soulsilver.
You can't. You need to get Heatran from Pokemon Diamond, Pearl and Platinum and then trade to heartgold and soulsilver.
Suicune is at Level 40 in HeartGold and SoulSilver.
You CAN NOT become a Gym Leader in Pokemon HeartGold and SoulSilver or ANY MAIN SERIES POKEMON GAME.