You have to get both Groudon and kyogre which are exclusive for heartgold and soulsilver. In heartgold you catch Kyogre and in soulsilver you catch Groudon so you have to trade to have both. Once you have them go back to the place you cought them and make sure they are both in your party (and you have the jade Orb) and rayquaza will be there waiting for you to get pwnd or for you to catch it.
No, Kyogre is for HeartGold and Groudon is for SoulSIlver. Unless, you trade with a friend or use the GTS, you can't get Groudon.no; latias, kyogre and rayquaza are in heartgold.Latios, Groudon, and rayquaza are in soulsilver.
You do not need to show Rayquaza to anyone in HeartGold. In order to get Rayquaza, you need to show Kyogre and Groudon (from HeartGold and SoulSilver) to Professor Oak. In turn, he will give you the Green Orb. With the Green Orb in hand, you can find Rayquaza in the Embedded Tower.
Groudon isn't in HeartGold, it is in SoulSilver. Kyogre is in HeartGold as well as Rayquaza.
Somehow
You can only find Skarmory in the Pokemon SoulSilver version.
to find Blue in HeartGold or SoulSilver go to Cinabar Island next to Seafoam Island and go right next to the Pokemon center.
No, you can not get registeel in HeartGold or SoulSilver. The only way to get it, is by trading
Groudon is unavailible in Pokemon heartgold trade from soulsilver to get groudon.
You can find it in Pokemon Platinum, Pokemon Crystal, Pokemon HeartGold, and Pokemon SoulSilver.
Ledyba is in SoulSilver only
Groudon and Rayquaza are located in the Hidden Tower off of Route 47.
Nowhere, because you can't catch it in the game. Your best bet is to get one in HeartGold or SoulSilver, then transfer it to White 2.