you need to beat all the gym leaders and go to mr.pokemon's house he will give you the red orb then go to the embended tower
You get Groudon in Pokemon Heart Gold by trading with somebody who's found Groudon in Soul Silver. You can't find Groudon in Heart Gold, you find Kyogre. Soul Silver players find Groudon.
you can only get red orb(groudon) in soul silver
groudon appears in soul silver.
Groudon doesn't evolve... Sorry
at level 50.
u need 2 either catch groudon on soul silver and trade it onto heart gold yourself or u can find some1 else who has a groudon on soul silver and trade with them.
The Embedded Tower.
There is latios and groudon.
yes
no, groudon is available in soul silver only, so you must trade from soul silver, however if you use cheats, the groudon will not unlock rayquaza.
If you fight and beat the elite four and the champion he will reappear, the same as all other legendaries in HG & SS.
No so migrate a groudon from ruby or emerald to have it.