Appendix:Yellow walkthrough/Section 15

Welcome to Indigo Plateau

The front room doubles as a Poké Center and Poké Mart, allowing Trainers to prepare themselves and their Pokémon before challenging the Elite Four. The Elite Four is a group of talented Pokémon Trainers second only to the Pokémon League Champion in terms of ability. The title of Champion designates a person as the strongest Trainer in the region, having defeated the Elite Four and the previous Champion to claim it. The next five battles will not be easy, but with a strong team and a decent supply of Max Potions, Full Restores, and Revives, you should be able to finally reach the Hall of Fame.
When you are ready, take the hallway past the Poké Mart counter, and step into the first room. Lorelei's sub-zero army awaits!

Elite Four challenge

Battle 1: Lorelei

Battle 1: Lorelei

The first member of the Elite Four is Lorelei, a master Ice-type Trainer. Three of her five Pokémon are Water/Ice-type elementals, so be wary of your type-matchups. Grass-types may seem like a good idea, but they'll only be useful against her Slowbro, a Water/Psychic-type. You're better off throwing a few thunderbolts to clear through her team. Her Jynx is an Ice/Psychic-type, so hit it with a Fire-type move like Flamethrower to finish it off.

Elite Four Lorelei Indigo Plateau Yellow Elite Four and Professor Lorelei Oak Indigo Plateau Yellow Reward: $5544

Types: Water Ice Dewgong Lv.54 BubbleBeam Water   --       Aurora Beam Ice   --       Rest Psychic   --       Take Down Normal   --       Types: Water Ice Cloyster Lv.53 Supersonic Normal   --       Clamp Water   --       Ice Beam Ice   --       Spike Cannon Normal   --       Types: Water Psychic Slowbro Lv.54 Surf Water   --       Psychic Psychic   --       Withdraw Water   --       Amnesia Psychic   --       Types: Ice Psychic Jynx Lv.56 DoubleSlap Normal   --       Ice Punch Ice   --       Lovely Kiss Normal   --       Thrash Normal   --       Types: Water Ice Lapras Lv.56 Body Slam Normal   --       Confuse Ray Ghost   --       Hydro Pump Water   --       Blizzard Ice   --

Defeating Lorelei opens the door to the second room. Bruno's team of martial artists awaits!

Battle 2: Bruno

Battle 2: Bruno

The second member of the Elite Four is Bruno, a master Fighting-type Trainer. That being said, only three of his five Pokémon are actually Fighting-types. Strong Water-types like Cloyster or Gyarados easily eliminate his two Onix with Surf. Dispatch a strong Psychic-type like Kadabra to deal with the other three, though a high-powered bird like Zapdos can take them out with Drill Peck or Sky Attack. The perfect Pokémon for Bruno is Slowbro, whose Water/Psychic-type combination has an advantage over all of his Pokémon.

Elite Four Bruno Indigo Plateau Yellow Elite Four and Professor Bruno Oak Indigo Plateau Yellow Reward: $5742

Types: Rock Ground Onix Lv.53 Rock Slide Rock   --       Dig Ground   --       Screech Normal   --       Slam Normal   --       Types: Fighting Unknown Hitmonchan Lv.55 Ice Punch Ice   --       Fire Punch Fire   --       ThunderPunch Electric   --       Double Team Normal   --       Types: Fighting Unknown Hitmonlee Lv.55 Double Kick Fighting   --       Double Team Normal   --       Hi Jump Kick Fighting   --       Mega Kick Normal   --       Types: Rock Ground Onix Lv.56 Rock Slide Rock   --       Screech Normal   --       Earthquake Ground   --       Slam Normal   --       Types: Fighting Unknown Machamp Lv.58 Leer Normal   --       Strength Normal   --       Karate Chop Normal   --       Submission Fighting   --

Defeating Bruno opens the door to the third room. Agatha's team from the spirit world awaits!

Battle 3: Agatha

Battle 3: Agatha

The third member of the Elite Four is Agatha, a master Ghost-type Trainer. Although Ghost-types are only weak against Ghost-type attacks, Psychic attacks can exploit the secondary Poison-type present throughout her team. Ground-type moves like Earthquake can deal some heavy damage, but are totally ineffective against her Golbat. Take out her two Gengar as soon as possible, or their Confuse Ray attacks will get annoying really quick.

Elite Four Agatha Indigo Plateau Yellow Elite Four and Professor Agatha Oak Indigo Plateau Yellow Reward: $5940

Types: Ghost Poison Gengar Lv.56 Confuse Ray Ghost   --       Lick Ghost   --       Substitute Normal   --       Mega Drain Grass   --       Types: Poison Flying Golbat Lv.56 Supersonic Normal   --       Leech Life Bug   --       Wing Attack Flying   --       Toxic Poison   --       Types: Ghost Poison Haunter Lv.55 Confuse Ray Ghost   --       Lick Ghost   --       Hypnosis Psychic   --       Dream Eater Psychic   --       Types: Poison Unknown Arbok Lv.58 Wrap Normal   --       Glare Normal   --       Screech Normal   --       Acid Poison   --       Types: Ghost Poison Gengar Lv.60 Confuse Ray Ghost   --       Psychic Psychic   --       Hypnosis Psychic   --       Dream Eater Psychic   --

Defeating Agatha unlocks the door to the fourth room. Lance and his ferocious dragons await your challenge!

Battle 4: Lance

Battle 4: Lance

The fourth and final member of the Elite Four is Lance, a master Dragon-type Trainer, and leader of the Elite Four. The Dragon-type is probably the strongest type in the game, since it resists Electric-, Grass-, Fire-, and Water-type moves, and is only weak to Dragon- and Ice-type attacks. A formidable opposing team, though only three of the five are actually of the Dragon-type. Take out his two Dragonair and Dragonite with an Ice Beam or Blizzard, and the bulk of his team is finished. Due to their secondary Flying-type, his Gyarados and Aerodactyl are also vulnerable to Ice moves, though there are other options to defeat them. Gyarados will take quadruple damage from electricity, so one strong Thunderbolt will knock it out. Aerodactyl is part-Rock, so Surf is one of its worst nightmares. Be wary of his dragons, because they each know the devastating Hyper Beam move. Articuno and Zapdos are probably some of the best choices to use against Lance's dragons.

Elite Four Lance Indigo Plateau Yellow Elite Four and Professor Lance Oak Indigo Plateau Yellow Reward: $6138

Types: Water Flying Gyarados Lv.58 Hydro Pump Water   --       Dragon Rage Dragon   --       Leer Normal   --       Hyper Beam Normal   --       Types: Dragon Unknown Dragonair Lv.56 Thunderbolt Electric   --       Slam Normal   --       Thunder Wave Electric   --       Hyper Beam Normal   --       Types: Dragon Unknown Dragonair Lv.56 Wrap Normal   --       BubbleBeam Water   --       Ice Beam Ice   --       Hyper Beam Normal   --       Types: Rock Flying Aerodactyl Lv.60 Wing Attack Flying   --       Fly Flying   --       Swift Normal   --       Hyper Beam Normal   --       Types: Dragon Flying Dragonite Lv.62 Blizzard Ice   --       Fire Blast Fire   --       Thunder Electric   --       Hyper Beam Normal   --

The Elite Four is defeated. After defeating Lance, the door to this unknown Champion's room is unlocked. Don't enter just yet, though—as soon as you leave Lance's room, the battle will begin almost immediately, so use any Potions or Revives now. There is only one person left standing between you and the title of Champion! Step through the door to find a familiar face...

Champion battle

Champion battle &
Hall of Fame room

Your rival defeated the Elite Four before you even set foot in Victory Road, and now he is the final opponent standing between you and the title of Indigo League Champion. The first half of his team will always be Sandslash, Alakazam, and Exeggutor, so plan accordingly. His second half is what varies, depending on which form his Eevee evolved into. Your Zapdos is a terror to his Exeggutor and Cloyster (or Vaporeon), and a quick Drill Peck or shocking Thunderbolt will send them reeling. A strong Water-type can wash away his Sandslash and Ninetales (or Flareon). Pokémon (like Charizard or Onix) that know Ground-type moves are best to use against his Jolteon. The only real struggle you might have is when facing his Alakazam; it typically has low defense power, so pound away with Pikachu's Slam or another hard-hitter. Once it neglects to recover its health, hit it fast and hard.

If Eevee → Jolteon:	If Eevee → Flareon:	If Eevee → Vaporeon:
Champion Blue Indigo Plateau Yellow Champion and Professor Blue Oak Indigo Plateau Yellow Reward: $6435 Types: Ground Unknown Sandslash Lv.61 Earthquake Ground   --       Slash Normal   --       Poison Sting Poison   --       Fury Swipes Normal   --       Types: Psychic Unknown Alakazam Lv.59 Psybeam Psychic   --       Recover Normal   --       Swift Normal   --       Kinesis Psychic   --       Types: Grass Psychic Exeggutor Lv.61 Barrage Normal   --       Hypnosis Psychic   --       Stomp Normal   --       Leech Seed Grass   --       Types: Fire Unknown Ninetales Lv.63 Fire Spin Fire   --       Tail Whip Normal   --       Quick Attack Normal   --       Confuse Ray Ghost   --       Types: Water Ice Cloyster Lv.61 Ice Beam Ice   --       Spike Cannon Normal   --       Aurora Beam Ice   --       Clamp Water   --       Types: Electric Unknown Jolteon Lv.65 Thunder Electric   --       Thunderbolt Electric   --       Quick Attack Normal   --       Pin Missile Bug   --	Champion Blue Indigo Plateau Yellow Champion and Professor Blue Oak Indigo Plateau Yellow Reward: $6435 Types: Ground Unknown Sandslash Lv.61 Earthquake Ground   --       Slash Normal   --       Poison Sting Poison   --       Fury Swipes Normal   --       Types: Psychic Unknown Alakazam Lv.59 Psybeam Psychic   --       Recover Normal   --       Swift Normal   --       Kinesis Psychic   --       Types: Grass Psychic Exeggutor Lv.61 Barrage Normal   --       Hypnosis Psychic   --       Stomp Normal   --       Leech Seed Grass   --       Types: Water Ice Cloyster Lv.63 Ice Beam Ice   --       Spike Cannon Normal   --       Aurora Beam Ice   --       Clamp Water   --       Types: Electric Unknown Magneton Lv.61 Thunderbolt Electric   --       Thunder Wave Electric   --       Screech Normal   --       Swift Normal   --       Types: Fire Unknown Flareon Lv.65 Flamethrower Fire   --       Quick Attack Normal   --       Smog Poison   --       Fire Spin Fire   --	Champion Blue Indigo Plateau Yellow Champion and Professor Blue Oak Indigo Plateau Yellow Reward: $6435 Types: Ground Unknown Sandslash Lv.61 Earthquake Ground   --       Slash Normal   --       Poison Sting Poison   --       Fury Swipes Normal   --       Types: Psychic Unknown Alakazam Lv.59 Psybeam Psychic   --       Recover Normal   --       Swift Normal   --       Kinesis Psychic   --       Types: Grass Psychic Exeggutor Lv.61 Barrage Normal   --       Hypnosis Psychic   --       Stomp Normal   --       Leech Seed Grass   --       Types: Electric Unknown Magneton Lv.63 Thunderbolt Electric   --       Thunder Wave Electric   --       Screech Normal   --       Swift Normal   --       Types: Fire Unknown Ninetales Lv.61 Fire Spin Fire   --       Tail Whip Normal   --       Quick Attack Normal   --       Confuse Ray Ghost   --       Types: Water Unknown Vaporeon Lv.65 Hydro Pump Water   --       Aurora Beam Ice   --       Quick Attack Normal   --       Mist Ice   --

You've finally done it! You've charged through the Elite Four, and taken the title of Indigo League Champion away from your rival. After the battle, Professor Oak appears and leads you past the Champion's room, and into the Hall of Fame room. It is here that your victorious team will be recorded, as a testament to your team's power and perseverance. After Oak enters your team's information, the game saves your progress, and the credits roll... but you're not done yet. When you find yourself back in Pallet Town, take wing to Cerulean.

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