Koga, the Fuchsia City gym leader, is a Poison Type Pokemon trainer. Go into battle with ground and psychic type Pokemon. The Pokemon he uses are 2 Koffing, one Muk and one Weezing. Bring a Diglet/Dugtrio, an Abra (Kadabra/Alakazam), Drowzee and a Chansey if you can get one (Chansey is a super strong Pokemon that can learn TM Physic).
water or grass type Pokemon
to fly in Pokemon pearl u have to get the hm fly then u have to teach it to a Pokemon that can learn then beat gym leader
use dark types u retards!!!!!!!!!!!!!!!!!!!!!!!!!! if you could get palkia or dialga
the fifth gym leader is Koga which is in fuchia city or you can switch the order and challenge Sabrina in saffron city but you have to beat Giovanni in the silph co.
after you beat the second gym leader go to the place where you started the game walk into the grass and arceus will apear.
water or grass type Pokemon
beat the gym leader
Beat the gym leader
with fighting type pokemon
you should have a lvl 50 water type
you find him
Beat the fuchsia city gym leader.
beat the fifth gem leader than you get the Hm surf
Beat the gym leaders. You get a new badge for every gym leader you defeat.
You go to Saffron City, go to the Silph Co., take out Giovanni, then beat Sabrina
to fly in Pokemon pearl u have to get the hm fly then u have to teach it to a Pokemon that can learn then beat gym leader
As the gym leader, Giovanni is supposed to be the eighth of them. So you have to beat the other seven before you can get to him.