Appendix:HeartGold and SoulSilver walkthrough/Section 27

Viridian City

Viridian Gym

Viridian Gym

Blue is the only Gym Leader not to specialize in a single type, instead using mostly the same team he had during his time as Champion three years ago. This is the final Gym battle, and the most diverse opposing team yet; make sure to bring a team with a wide range of powerful attacks. The Gym itself has had an upgrade from the days of Generation II; Blue has installed a maze of spinner tiles to confound any would-be challengers, throwing one last obstacle between you and your final badge. In order to reach the Gym Leader, you'll need to enter the maze from the southwest. Like the final Gym of the Johto region, the floor is unstable, and your lead Pokémon retreats into its Poké Ball. The maze itself isn't all that difficult to figure out, but just be aware that there are three Ace Trainers and a Double Team duo near the stopper tiles, and they all enjoy using Trick Room.

His Pidgeot and Gyarados are both vulnerable to Template:Type2 attacks, so set off a few Thunderbolts or any other strong Electric-type attack — Gyarados will fall quickly due to its quadruple weakness. Rhydon and Arcanine are afraid of water and Ground, meaning that moves like Surf, Waterfall and Earthquake will be a big help; you can also use Template:Type2 attacks like Leaf Storm against Rhydon and Template:Type2 attacks like Stone Edge against Arcanine. His Exeggutor is at a disadvantage from a Fire-, Flying-, Dark- and especially Template:Type2 assaults; take it out with moves like Flamethrower, Brave Bird, Crunch or Megahorn. Finally, his Machamp; a strong fighter but one with little defense against Flying- or Template:Type2 attacks. Just be extra careful when using Flying-type Pokémon -- it has Stone Edge and ThunderPunch to punish them, and with ability No Guard, 80% accuracy of Stone Edge no longer matters. Stone Edge also does double damage against flying Pokémon, so make sure you don't use Fly! Psychic-type moves like Psychic will bring it down quickly.

Viridian Gym Trainers Trainer Pokémon Ace Trainer Arabella Ace Trainer Arabella ヤスタカ Yasutaka Reward: $3120 Stantler Lv.53 No item Tauros Lv.52 No item Ace Trainer Salma Ace Trainer Salma アキエ Akie Reward: $3180 Slowking Lv.50 No item Lickilicky Lv.53 No item Ace Trainer Bonita Ace Trainer Bonita ヨシノリ Yoshinori Reward: $3120 Spinda Lv.50 No item Sudowoodo Lv.52 No item Double Team Elan & Ida Double Team Elan & Ida テン & サヨ Ten & Sayo Reward: $12000 Porygon2 Lv.52 No item Azumarill Lv.50 No item File:BlueHGSS.gif Leader Blue Viridian Gym HeartGold and SoulSilver Leader and Professor Blue Oak Viridian Gym HeartGold and SoulSilver Reward: $9600 Types: Grass Psychic Ability: Chlorophyll Held item: None Exeggutor♂ Lv.55 Psychic Psychic Special   --       Hypnosis Psychic Status   --       Leaf Storm Grass Special   --       Trick Room Psychic Status   --       Types: Ground Rock Ability: Unknown Held item: None Rhydon♂ Lv.58 Earthquake Ground Physical   --       Stone Edge Rock Physical   --       Megahorn Bug Physical   --       Thunder Fang Electric Physical   --       Types: Fighting Unknown Ability: No Guard Held item: None Machamp♂ Lv.56 ThunderPunch Electric Physical   --       DynamicPunch Fighting Physical   --       Stone Edge Rock Physical   --       Earthquake Ground Physical   --       Types: Water Flying Ability: Intimidate Held item: None Gyarados♂ Lv.52 Waterfall Water Physical   --       Ice Fang Ice Physical   --       Dragon Dance Dragon Status   --       Return Normal Physical   --       Types: Fire Unknown Ability: Intimidate Held item: None Arcanine♂ Lv.58 ExtremeSpeed Normal Physical   --       Flare Blitz Fire Physical   --       Dragon Pulse Dragon Special   --       Roar Normal Status   --       Types: Normal Flying Ability: Tangled Feet Held item: Sitrus Berry Pidgeot♂ Lv.60 Whirlwind Normal Status   --       Mirror Move Flying Status   --       Return Normal Physical   --       Air Slash Flying Special   --

Congratulations, you just defeated the final Kanto Gym! Blue awards you the Earth Badge, the final of 16, which allows the use of Rock Climb outside of battle. That means that you can finally scale all of those odd-looking cliffs, and maybe find a rare item. He also gives you TM92 (Trick Room) as a prize, a wily move that distorts the dimension so slower Pokémon can attack first.

With shiny new badge in hand, you exit the Gym and immediately get a call from Professor Oak. He's got something for you, so walk back to Pallet Town through the express path(the ledges) of Route 1.

Pallet Town

Oak's Pokémon Lab

In recognition for defeating the eight Gyms of Kanto, Oak gives you the last of the HMs, HM08 (Rock Climb). He soon spots your badge collection, and now that you've earned all 16, he grants you access to Mt. Silver off in the west. The hallowed mountain is strictly off-limits to the average Trainer, but by now you've proven that you are more than an average, run-of-the-mill Trainer. But before you run off to that harsh and forbidding mountain, there are a few loose ends to tie up, including a few legendary Pokémon. First off, fly to Cerulean City and head east to reach the Power Plant.

Power Plant

Zapdos

Now that you have all 16 badges, you can find the second of Kanto's legendary birds roosting just outside the Power Plant. Zapdos is weak against Ice- and Template:Type2 moves, so use attacks of those types to slash its HP. Then, switch to Grass-, Fighting-, Bug-, or Template:Type2 moves so that you only inflict half-damage. This is the only Zapdos in the game, so make every attempt to catch it. However, like with Articuno, if you accidentally defeat it, you can make it reappear by defeating the Elite Four and the Champion again.

Types: Electric Flying Ability: Pressure Held item: None Zapdos Lv.50 AncientPower Rock Special   --       Charge Electric Status   --       Agility Psychic Status   --       Discharge Electric Special   --

With a new legendary added to your collection, your next stop is a dark, creepy cave in the region's north side. Fly back to Cerulean City.

Cerulean City

Cerulean Cave

Cerulean Cave

The path through Cerulean Cave is as twisted as a tangled ball of yarn. It's also pitch-dark inside, so you'll need to bring a Pokémon that knows Flash to see where you're going, as well as the HM moves Surf, Rock Smash, and Rock Climb. If you can make it to the back of the basement floor, you'll find Mewtwo, master of the Cerulean Cave.

Available Pokémon

B1F Pokémon Games Location Levels Rate Parasect HG SS Cave 45-47 25% Kadabra HG SS Cave 46 20% Magneton HG SS Cave 45-47 15% Golbat HG SS Cave 47 10% Machoke HG SS Cave 45 10% Ditto HG SS Cave 45 10% Electrode HG SS Cave 46 5% Wobbuffet HG SS Cave 49 5% Fishing and Surfing Psyduck HG SS Surfing 35-40 90% Golduck HG SS Surfing 40 10% Magikarp HG SS Fishing Old Rod 10 100% Poliwag HG SS Fishing Good Rod 20 62% Goldeen HG SS Fishing Good Rod 20 33% Magikarp HG SS Fishing Good Rod 20 5% Poliwag HG SS Fishing Super Rod 40 60% Poliwhirl HG SS Fishing Super Rod 40 30% Gyarados HG SS Fishing Super Rod 40 10% Special Pokémon Mewtwo HG SS Only one 70 One Makuhita HG SS Hoenn Sound 45 20% Absol HG SS Hoenn Sound 45-47 20% Chingling HG SS Sinnoh Sound 45 20% Bronzor HG SS Sinnoh Sound 45-47 20% A colored background means that the Pokémon can be found in this location in the specified game. A white background with a colored letter means that the Pokémon cannot be found here. 1F Pokémon Games Location Levels Rate Electrode HG SS Cave 40 5% Wobbuffet HG SS Cave 37 5% Machoke HG SS Cave 39-40 24% 24% 6% Parasect HG SS Cave 38 20% 20% 10% Primeape HG SS Cave 38-39 14% 14% 0% Primeape HG SS Cave 39 0% 0% 4% Persian HG SS Cave 38-39 14% 14% 0% Persian HG SS Cave 39 0% 0% 4% Magneton HG SS Cave 40 11% 11% 10% Ditto HG SS Cave 39 11% 11% 10% Golbat HG SS Cave 38 10% 10% 0% Golbat HG SS Cave 38-39 0% 0% 50% Fishing and Surfing Psyduck HG SS Surfing 35-40 90% Golduck HG SS Surfing 40 10% Magikarp HG SS Fishing Old Rod 10 100% Poliwag HG SS Fishing Good Rod 20 62% Goldeen HG SS Fishing Good Rod 20 33% Magikarp HG SS Fishing Good Rod 20 5% Poliwag HG SS Fishing Super Rod 40 60% Poliwhirl HG SS Fishing Super Rod 40 30% Gyarados HG SS Fishing Super Rod 40 10% Special Pokémon Makuhita HG SS Hoenn Sound 39-40 20% Absol HG SS Hoenn Sound 38 20% Chingling HG SS Sinnoh Sound 39-40 20% Bronzor HG SS Sinnoh Sound 38 20% A colored background means that the Pokémon can be found in this location in the specified game. A white background with a colored letter means that the Pokémon cannot be found here. 2F Pokémon Games Location Levels Rate Parasect HG SS Cave 40 20% Kadabra HG SS Cave 42 20% Magneton HG SS Cave 41 10% Ditto HG SS Cave 42 10% Electrode HG SS Cave 41 5% Wobbuffet HG SS Cave 42 5% Machoke HG SS Cave 39-42 20% 20% 0% Machoke HG SS Cave 39 0% 0% 10% Golbat HG SS Cave 41 10% 10% 0% Golbat HG SS Cave 41-42 0% 0% 20% Special Pokémon Makuhita HG SS Hoenn Sound 41-42 20% Absol HG SS Hoenn Sound 39-41 20% Chingling HG SS Sinnoh Sound 41-42 20% Bronzor HG SS Sinnoh Sound 39-41 20% A colored background means that the Pokémon can be found in this location in the specified game. A white background with a colored letter means that the Pokémon cannot be found here.

1F

Walk north to the water's edge, and surf to the northeast. Climb the ladder to the second floor for an item detour.

2F

You can only reach a small area of 2F from here. Follow the path around, and smash the two rocks to find TM24 (Thunderbolt). Retrace your steps back to 1F.

1F

Surf off to the west, and climb out of the water. Grab the Nugget, and climb the southern ladder.

2F

Use Rock Smash to break the boulder, follow the path to a PP Up, and take the ladder back to 1F.

1F

Head south and break the group of three brittle rocks to find a hidden Hyper Potion. Walk east and climb up onto the rock ledge, and pick up the Full Restore near the green crystals. Continue east, then head north and climb the ladder.

2F

This wide-open area of 2F hides a handful of hidden items, so fire up your Dowsing MCHN to find an Ultra Ball, a Big Pearl, a PP Up, a Zinc, and a Full Heal. Take the ladder back downstairs.

1F

Walk west under the bridge, then turn south. Check the smaller of the green crystals for a hidden Revive, and climb the stairway onto the bridge. Head to the northeast for a Max Elixir, then northwest for a Sea Incense lying near another crystal. The narrow trail along the north wall wraps around along the east wall as well, to serve as a quick escape route. At the end of this path is a Rare Candy hidden in the green crystals. Climb the ladder at the south end of the bridge to reach 2F.

2F

In this area of 2F, you can find an Ultra Ball, a hidden Protein, and an Odd Incense. Follow the trail to the northeast, then follow along the north wall to the ladder in the northwest.

1F

Take the ladder to the basement floor.

B1F

Head south, and use Rock Climb twice near the western wall to reach another Ultra Ball. Turn east and use Rock Climb again; detour to the east to pick up a Dusk Stone. Climb the rock wall and head north, where you can break the two rocks in the corner to find a Max Revive. Follow the trail around along the north wall, and take the first right turn to reach another Max Revive. Walk all the way to the south, and swim out into the murky water. Surf to the northeast, and use Rock Smash on the two rocks to find another hidden Ultra Ball. Follow the trail to the north, and use Rock Climb twice to reach an Electirizer to the east. Head south, jump the ledge, and climb down the rocks. Smash the nearby rock to find a Nugget on the crystal, and continue south. Step out into the water, and surf all the way to the southeast to grab a Black Sludge. Loop around to the northeast across the water, and you'll finally run into the Genetic Pokémon.

Mewtwo

Now that you've trekked through the entire winding cave, you finally have a shot at catching Mewtwo. This vicious Template:Type2 is vulnerable to Bug-, Ghost-, and Template:Type2, so start the battle with attacks of those types to inflict the most damage. After that, wear it down little-by-little with Fighting- or Template:Type2 moves. Its only offensive move, Psycho Cut, is extremely powerful, so be careful that it doesn't knock your team out before you can catch it. On the other hand, if you happen to defeat it instead, then you can make it reappear by defeating the Elite Four and Champion again; it will reappear as many times as you enter the Hall of Fame until you finally catch it.

Types: Psychic Unknown Ability: Pressure Held item: None Mewtwo Lv.70 Psycho Cut Psychic Physical   --       Amnesia Psychic Status   --       Power Swap Psychic Status   --       Guard Swap Psychic Status   --

Now that you've explored Cerulean Cave, your next destination is Mt. Silver to the west. Fly to Viridian City and head west to reach Route 22.

This article is part of Project Walkthroughs, a Bulbapedia project that aims to write comprehensive step-by-step guides on each Pokémon game.