Get the Squirtbottle from a lady in the town where Whitney is after beating her, and squirt the tree.
Ghost, Fire, Ground, Psychic, and Ice
beat the Pokemon luegue then go to the Pokemon centre
an easy way is to trade a bunch of your good Pokemon onto Pokemon heart gold but if you don't have a lot of good Pokemon on heart gold and you don't have another game then train a lot before you get there :)
you have to get all eight gym badges
In the seafoam islands in the same spot as the past games
poo on the block then eat it you idiot
after you beat the gym
you jump on the tower press A then double jump backwards then fall into the glich where you will get past the tower
Yes you can trade from past Pokemon games...I think only heart gold/soul silver though...
If you mean the guard by the elavator, you can't get passed him.
the 2 boy who were fighing move giving you a path ,but you have to fight them
Beat the Kanto Gym Leaders CFS