get the squirtbottle from the flower shop in goldenrod city
It is found in Ecruteak City Gym
Use the pokeflute.
defeat the gym
You ride on a unicycle there Actually, you beat Team Rocket in Goldenrod City. After that, the guy blocking the way in Mahogany Town should move.
Yes, you can, but you need to enter Ecruteak City's Pokemon Center to activate the feature in any Pokemon Center. You can only trade the first 151 Pokemon. They also can't know any moves they weren't in Red. To fix that, either teach it an HM (all will do except Whirlpool) and replace that move, or make it forget the move at the Move Deleter's house in Blackthorn City.
If you're talking about the guy blocking the path to Sunyshore city in diamond and pearl, you have to defeat Team Galactica at the top of the mountain, beat palkia, etc. After that the guy is gone.
in ecruteak city after saving the kimono girl a dude gives the HM to you
Yes, he is in that cave you see right above Cerulean city. The only problem is the guy blocking it is only going to move after you beat the Pokemon league.
you have to see all 150 Pokemon in the sinnoh poekdex
hoho is in ecruteak city but first you have to get a rainbow wing from a man in pewter city then you can fly back to ecruteak and go to the bell tower and the guy that was in the way will say alot of stuff then move then you can go to the top of the tower and battle him
You have to get all eight gym badges
Go around. You have to get to Viridian City to make him move. after beating the elite 4, take the S.S. Anne (or whatever it's called) in Olivine to Kanto.