Iris calls out to you upon entering the city. She points you toward the Gym, but recommends training on Route 9 before challenging her "grandfather" Drayden.
Get Props from the old man
Visit the westernmost house, and speak to the old man inside. He is a big fan of Musicals, and will hand out one Prop every day for a total of four. Stop by again to get a Big Bag, Fluffy Beard, Gift Box, and Scarlet Hat.
The Tympole Choir
There are five Tympole in the house to the north of the Pokémon Center. If you visit with a Tympole in your party, you will have an amazing opportunity to hear six Tympole singing in harmony.
Route 9 is a paved road that runs through a wooded area. To the north is Shopping Mall Nine, which offers the greatest variety of goods in the region.
This convenient mall has a great selection of items, including some not found in any Poké Mart, so be sure to spend, spend, spend! Don't miss out on special evening deals; talk to the Waitress on the east side of the ground floor to buy items like Poké Balls at a discount. The stockroom is packed with boxes of appliances; bringing a Rotom here will allow it to change its form.
Talk to the Lady on the ground floor, and she gives you 1200 to buy her a Hyper Potion. Bring her one that same day, and she rewards you with an Energy Root. If you wait and bring it to her the next day, you'll get an EnergyPowder instead.
Opelucid City Pokémon Gym Leader: Drayden The Spartan Mayor
The Opelucid Gym specializes in Dragon-type Pokémon, which are only vulnerable to Ice- and Dragon-type attacks. The Gym consists of two large dragon statues, one near the entrance and the other at the rear wall. Challengers must defeat at least one Trainer from each level to advance. First off, defeat Veteran Lucius to activate the switch on the first dragon's neck; this elevates you to the level of the next two Trainers. On the left, Veteran Rhona prefers fighting defensively, while Veteran Jerry on the right favors offense. Defeat at least one to reach the next level. On the left, Veteran Denae fights in a Rotation Battle, while Veteran Ron on the right fights in a Triple Battle. Once they fall, your statue rises to Drayden's level and the two statues butt heads, allowing you to reach the Gym Leader.
Drayden shows you to his home, where he tells the story of the two dragons, the legend of Kyurem, and the history of his family heirloom.
Let me tell you the story. It's a long story, but listen closely. It was two years ago when the two dragon Pokémon were awakened. The black dragon Pokémon, Zekrom, pursued what is ideal, with the desire to usher in a new world of hope. And the white dragon Pokémon, Reshiram, sought what is true, with the desire to usher in a new world of goodness. Zekrom and Reshiram were once a single Pokémon. You may wonder why it split in two. The single dragon Pokémon had helped the twin heroes bring a new region into being. But the twin heroes--the older brother who sought the truth and the younger brother who sought ideals--sundered the region in two as they fought to see which of them was right. In that desperate hour, the single dragon Pokémon split its body into a black Pokémon and a white Pokémon, even though ideals and truth don't need to be in opposition! As the story goes, a third dragon Pokémon, Kyurem, also came into existence in that era. And there may be proof of this to be found in a treasure passed down in my family for generations: the DNA Splicers. Professor Juniper's research determined that the materials in the splicers date back to the same era as the materials used in building the Dragonspiral Tower. Oh, the DNA Splicers are stored very safely. I guard them because I don't know what kind of power might lie within them. But here's what's been bothering me... Could there be one more dragon Pokémon? Even if Kyurem really exists, we don't know what kind of Pokémon it is. For starters, the two Pokémon the ancient Pokémon split into are both overwhelmingly powerful. So if Kyurem exists, could it be just a husk--a shell that was left over?
Team Plasma Attacks!
The building is rocked by a sudden tremor. Outside, the Plasma Frigate approaches from the sky. It readies its cannon and fires a few shots of ice at the city. Every shot freezes a part of the city, leaving the area difficult to navigate. Drayden doesn't appreciate this and sends his Haxorus to smash the nearest ice crystal, but it doesn't work. Zinzolin appears and demands that Drayden hand over the DNA Splicers. He refuses, but the Sage won't give up so easily. He sends his Grunts to search for the splicers, and the Gym Leader asks that you track them down.
Slide south over the ice to catch up with Drayden, and fight the first Grunt just east of the Pokémon Center. Next, slide north to find the second Grunt outside the former Battle House. After that, track down the third Grunt to the south of the Gym. When all three are defeated, return to the Gym to take on Zinzolin. Use Fire- and Fighting-type moves to bring the battle to a quick end.
Zinzolin runs off and Drayden heals your Pokémon. He steps inside the Gym briefly to retrieve the DNA Splicers, which he gives to you. Just then, one of the Shadow Triad appears and steals the splicers. The two others appears as well, and the three run off. Head south toward the Route 11 gate to find one of them waiting for you. Attack with Fighting-type moves for a decisive victory.
The Marine Tube is an undersea tunnel built with cutting-edge technology. Known as The Walk-Through Aquarium, the path features a transparent dome so that visitors can see the various ocean-dwelling Pokémon. Wailord appears every day from 3pm to 4pm; seeing it swim over and under the tunnel earns you the Wailord Watcher Medal.
Humilau City is a resort town with a tropical atmosphere. Surrounded by the ocean, the homes here are built on wooden bridges. In addition to the Marine Tube, the city connects to Route 21 in the south and Route 22 in the west.
Hugh is waiting near the Marine Tube exit. When you approach him, he suggests taking on the final Gym Leader. But first, you will need to track him down. Marlon is a man of the sea, and as you walk north, he leaps out of the water and onto the pier. After meeting him here, he will return to the Gym.
In the house just north of the Gym, a Roughneck offers to trade Pokémon. He offers a Tangrowth in exchange for a Mantine. Mantine can be found in Undella Bay, except during the winter.
A New Funfest Mission
Outside the Roughneck's house is an old man. Talking to him will add a new Funfest Mission, Memory Training.
Mienfoo's Daily Walk
In the northwest house lives a Socialite and her Mienfoo. Once a day, she will ask that you take Mienfoo on a walk. Lead it around the house for a while, and the old woman rewards you with a Pearl.
Home is Where the Heart Scales Are
A Nurse with a Stunfisk lives in the northeast house. She likes flat Pokémon, and will give out five Heart Scales if you speak to her with a Luvdisc in your party. Luvdisc can only be caught by fishing, but the Super Rod is not obtained until later.
Humilau City Pokémon Gym Leader: Marlon More Splash Than The Sea
The marshy Humilau Gym specializes in Water-type Pokémon, so Grass- and Electric-type attacks will work best. To reach the Gym Leader, challengers must move from dock to dock by floating on large lily pads. When stepped on, they move in the same direction until they hit an obstacle. When they hit each other, the first stops and the second moves on. Jump on the first lily pad to reach the southwest dock, and ride the second one eastward. Climb onto the dock and go east to fight Ace Trainer Melina. Float south to the next dock and loop around to reach the bridge. To reach Ace Trainer Santino, ride the nearby pad south then east; this moves another pad into place, letting you continue along the east wall. Take on Ace Trainer Jeanne and cross the water to reach the northwest dock. Float north to reach Ace Trainer Sable, then south to reach Ace Trainer Enzio. Repeat the same clockwise loop to reach Marlon.
Upon his defeat, Marlon awards you the Wave Badge, which ensures that all Pokémon will obey without question. He also hands over TM55 (Scald) as a prize before swimming off.
Outside, Hugh congratulates you on winning your eighth Badge, and reminds you that Team Plasma is still up to no good. Marlon stops by, asking if Team Plasma is actually bad or not. He follows a policy of "the ocean accepts all rivers", and as a result does not seem bothered by the group's wrongdoings. He refuses to help track them down, and just walks away. Hugh asks that you investigate Route 22 to the west. Stock up on Ultra Balls before you go, as another legendary is found nearby!
The uneven terrain of Route 22 makes the scenery almost maze-like. Raised walkways connect some elevated areas, while most of the tall grass lies below. The route stretches between Humilau City to the east and the Giant Chasm to the west.