i dont think the game can go on unless u beat him. but try to beat him anyway its always good to face a tough challenge
All of them have phone numbers, but there are certain ways to get them. I would try looking up "how to get all gym leader's phone numbers in heartgold" on google
it was about two or three of the gym leaders
You don't get to the Hoenn region. You can only get some Pokemon from Hoenn by listening to 'Hoenn Sound' on Pokemon Music on Wednesdays in certain places.
Find them on a certain day, time, and place and you will get their phone numbers. Then, on another certain day/time/place you can call them for a rematch.
You have to search Johto and Kanto and find all the gym leaders out side of there gyms and and then talk to them and they will eventually give you their numbers
You could use an action replay or give it to a Pokemon in another Pokemon ds game and trade it to heart gold also you can get it by getting all loto numbers to macht
you cant get to sinnoh in heart gold, but you can find the gym leaders from sinnoh.
you get it from blue when you defeat all 16 gym leaders
You have to beat all 8 gym leaders
Defeat all gym leaders in jounto and kanto then deafeat red and you can get another starter pokemon
Yes.
In HeathGold/SoulSilver the leaders will be the same from Gold/Silver and Crystal. This means the 8 leader from Johto and the leaders from Kanto, one for each type.