Gary isn't in heart gold and your rival chooses whatever Pokemon is opposite to yours.
you don't get the red orb in Pokemon heart gold you get the blue orb that you use to get kyogre
Pikachu
Yes
The only way to get a Deoxys in Pokemon Heart Gold is to either trade it from another Pokemon game that has it, or use an action replay code.
you have to use hm rock smash on rocks to find them.
Use a action replay
no i tried
Use gameshark codes.
The GS Ball is not in the Heart Gold progamming so even if you use an Action Replay you cannot obtain it.
use multi type Pokemon
No,you can only use it once on one pokemon.
No,prob not. But you can in D/P/PT.