From Bulbapedia, the community-driven Pokémon encyclopedia.
Jump to navigationJump to search
キョウ Kyou
"The Poisonous Ninja Master"
Lets Go Pikachu Eevee Koga.png
Art from Let's Go, Pikachu! and Let's Go, Eevee! by Megumi Mizutani[1]
Age Unknown
Gender Male
Eye color Black
Hair color Greying teal
Hometown Fuchsia City
Region Kanto
Relatives Janine (daughter)
Aya (sister) (anime)
Trainer class Gym LeaderRBYFRLGPE
Generation I, II, III, IV, VII, VIII, IX
Counterpart(s) Koga (Masters)
Games Red, Blue, Yellow, Gold, Silver, Crystal, FireRed, LeafGreen, HeartGold, SoulSilver, Let's Go, Pikachu!, Let's Go, Eevee!
Stadium, Stadium 2, Masters EX
English voice actor Christopher Bevins[2] (Masters EX)
Japanese voice actor Tōru Ōkawa (Masters EX)
Member of Indigo League
Rank Gym LeaderRBYFRLGPE
Leader of Fuchsia Gym
Badge Soul Badge
Specializes in Poison types
Anime series Pokémon the Series
Pokémon Origins
Debut The Ninja Poké-Showdown (Pokémon the Series)
File 3: Giovanni (Pokémon Origins)
English voice actor Stuart Zagnit (Pokémon the Series)
N/A (Pokémon Origins)
Japanese voice actor Hōchū Ōtsuka (Pokémon the Series)
N/A (Pokémon Origins)
Manga series Pokémon Adventures
Debut Raging Rhydon
Member of Team Rocket
Rank Admin

Koga (Japanese: キョウ Kyou) is the former Gym Leader of Fuchsia City's Gym. He is a student of ninjutsu who specializes in Poison-type Pokémon. He handed out the Soul Badge to Trainers who defeated him in battle.

He became a member of the Indigo Elite Four some time after the events of Generation I and its remakes, but before the events of Generation II and its remakes, thus leaving his daughter Janine in charge of the Fuchsia Gym.

In the core series games

Koga, known as the Poisonous Ninja Master, serves two roles in the Pokémon games. In Pokémon Red, Blue, Yellow, FireRed, and LeafGreen and Pokémon: Let's Go, Pikachu! and Let's Go, Eevee!, he is the Leader of the Fuchsia Gym, but is promoted to be the second trainer of the Indigo Plateau Elite Four in Pokémon Gold, Silver, Crystal, HeartGold, and SoulSilver. Koga is a user of the Poison-type; he likes the despair and horror that Poison-type Pokémon can inflict on others.

Koga has studied medicine and antidotes; he makes his own potions to heal his Pokémon. He also serves as a teacher. Many students come to him to be trained in the arts of Ninjutsu and Pokémon. One of his students is his own daughter, Janine, who takes over his Gym in Generations II and IV storyline. In addition to these roles, Koga also patrols the grounds of the Kanto Safari Zone, to ensure that the players of the Safari Game are safe from the wild Pokémon within.

In Generations I, III, and VII, Koga's Gym is typically the fifth Gym to be challenged. He has built invisible walls in the Fuchsia City Gym, constructing a confusing maze out of them. Koga awaits challengers in the center of the maze, clearly visible, but a group of Koga's students must be fought first. Defeating him will earn the successful Trainer the Soul Badge and the TM for Toxic, a move which, according to him, is a secret technique that has passed down his family for over 400 years.

With the future of the Gym in his daughter's hands, Koga advances to a role in the Pokémon League of Kanto and Johto before the events of Generations II and IV. In these games, he is the second member of the Elite Four to be faced. The team he uses in this role is similar to his Gym Leader's teams; the main difference is the introduction of Pokémon not native to Kanto. Koga's battle style as an Elite Four member is designed to confound and destroy his opponent in battle. Rather than using brute force, Koga attempts to confuse, put to sleep, and poison his opponent.

He speaks with a Japanese accent, as evidenced in Pokémon Masters EX.

Fame Checker

This is a list of the Fame Checker's information on Koga in Pokémon FireRed and LeafGreen Versions.

Fuchsia City - Sign
  • What does this person do?
"Fuchsia City Pokémon Gym
Leader: Koga
The Poisonous Ninja Master"
Fuchsia Gym - Koga
  • Favorite kind of Pokémon?
"Despair to the creeping horror of Poison-type Pokémon!"
Fuchsia Gym - Juggler Kirk
  • What is this person like?
"Even though I've lost, I will keep training according to the teachings of Koga, my ninja master."
Fuchsia City - Charine*
  • Family and friends?
"My father is the Gym Leader of this town.
I’m training to use Poison Pokémon as well as my father."
Safari Warden's Home - Pokémon Journal*
  • There’s a rumor...
"Koga is said to have a thorough knowledge of medicine.
He even concocts medicine to nurse his Pokémon to health."
Safari Zone - Man
  • What does this person do?
"The Safari Zone's huge, wouldn't you say?
Fuchsia's Gym Leader, Koga, patrols the grounds every so often.
Thanks to him, we can play here knowing that we're safe."
Message from Koga
  • From: Koga
  • To: [Player]
"You and I, we must both set our sights higher and work towards meeting our challenges.
Now, I must go train my daughter."


This is a listing of Koga's Pokémon in the games in which he has appeared.

Pokémon Red and Blue

Koga has two X Attacks per Pokémon, using them randomly 25% of the time.

Pokémon Yellow

Koga has two X Attacks per Pokémon, using them randomly 25% of the time.

Pokémon Gold, Silver, and Crystal

Koga has a Full Heal and a Full Restore.

Pokémon FireRed and LeafGreen

Koga has two Hyper Potions and a Full Heal.

Pokémon HeartGold and SoulSilver

First battle


This team is used once the player has earned all 16 Badges.

Pokémon: Let's Go, Pikachu! and Let's Go, Eevee!

Gym battle


In the side series games

Pokémon Stadium

Koga appears in Pokémon Stadium as the fifth Gym Leader the player faces during the Gym Leader Castle challenge. In Round 2, he also uses Pokémon outside his specialty type.


Round 1

Round 2

Pokémon Stadium 2

Koga returns in Pokémon Stadium 2 as the second Elite Four member in the Johto Gym Leader Castle. His strategy revolves around using Toxic to poison his opponents and Double Team to evade their attacks.

During the game's end credits, Koga is seen having a battle with his daughter Janine at the Fuchsia Gym.


Round 1

Round 2

In the spin-off games

Koga in Pokémon Zany Cards

Pokémon Puzzle League

Koga appears in Pokémon Puzzle League as one of the Gym Leaders Ash must defeat.



Pokémon Puzzle Challenge

Koga appears as an opponent in Pokémon Puzzle Challenge, where he uses a Crobat.

Pokémon Zany Cards

Koga appears, along with Sabrina, as the Stage 4 opponent of Special Seven mode.

Pokémon Masters EX

Main article: Koga (Masters)

Koga, in his Pokémon HeartGold and SoulSilver design, forms a sync pair with Crobat in Pokémon Masters EX. Koga became a playable sync pair since the game's release, with him joining the player after completing the sixteenth chapter of the PML Arc.

Sync Dex Trainer NDex Pokémon Type Weakness Role Base Potential Availability
#062 VSKoga Masters.png Koga #0169 MastersIcon0169.png Crobat
PoisonIC Masters.png
ElectricIC Masters.png
Masters Tech.png ★★★★☆☆EX Story
Chapter 16



RG Koga.png Red Blue Koga.png Yellow Koga.png FireRed LeafGreen Koga.png HeartGold SoulSilver Koga.png Koga LGPE concept art.jpg
Headshot from
Red and Green
Official artwork from
Red and Blue
Official artwork from
Official artwork from
FireRed and LeafGreen
Official artwork from
HeartGold and SoulSilver
Concept art from
Let's Go, Pikachu! and Let's Go, Eevee!

Sprites and models

In the core series

Spr RG Koga.png Spr Y Koga.png Spr GS Koga.png Spr FRLG Koga.png Spr HGSS Koga.png VSKoga.png VSKoga PE.png
Sprite from
Red and Blue
Sprite from
Sprite from
Generation II
Sprite from
FireRed and LeafGreen
Sprite from
HeartGold and SoulSilver
VS sprite from
HeartGold and SoulSilver
VS model from
Let's Go, Pikachu! and Let's Go, Eevee!
Koga I OD.png Silph employee I OD.png Koga II OD.png Koga III OD.png Koga OD.png ODKoga PE.png
Overworld sprite from
Red and Blue
Overworld sprite from
Overworld sprite from
Generation II
Overworld sprite from
FireRed and LeafGreen
Overworld sprite from
HeartGold and SoulSilver
Overworld model from
Let's Go, Pikachu! and Let's Go, Eevee!

In other games

S2 Elite Four Koga.pngS2 Elite Four Koga alt.pngS2 Elite Four Koga alt2.png
Portraits from Stadium and Stadium 2


Main article: Koga/Quotes

In the anime

Main series

Koga in the original series

Koga appeared in The Ninja Poké-Showdown. He operates the Fuchsia Gym in the woods outside Fuchsia City. Aya, Koga's younger sister, is one of his students.

Ash and his friends managed to overcome the Gym's traps before meeting Koga, and Ash challenged him to a Gym battle. During the match, Ash's Pidgeotto initially lost to Koga's newly-evolved Venomoth, prompting Ash to call out Charmander. However, their match was interrupted when Team Rocket tried to steal Koga's large supply of Voltorb, even though they originally raided the Gym with the intent of getting Poison-type Pokémon. Team Rocket was eventually stopped by Psyduck's unexpectedly powerful Confusion attack. Koga then offered to trade his Venomoth for Psyduck, but Misty declined. Ash and Koga then had a rematch; pitting Charmander against Koga's Golbat, Ash triumphed and won the Soul Badge.

He reappeared in a flashback in The Fires of a Red-Hot Reunion!.


Koga is dedicated to perfecting his battling techniques. Like the traps in his Gym, he attempts to confuse and disorientate his opponents to get the upper hand during a match.


This article is missing information on this character's Japanese voice actor.
You can help by adding this information.

On hand

This listing is of Koga's known Pokémon in the anime:

Koga's Venonat

Koga's Venomoth
Venonat → Venomoth
When Ash challenged Koga, he sent out his Venonat, which Ash originally underestimated since he had previously defeated Aya's Venonat quite easily but then it instantly evolved into a Venomoth, and proceeded to get the upper hand in its Gym battle with Pidgeotto. The battle was interrupted by Team Rocket, and afterwards, Koga offered to trade Venomoth to Misty for her Psyduck, but she declined.

Venomoth's known moves are Stun Spore and Sleep Powder.

Debut The Ninja Poké-Showdown
Voice actors
Japanese Chinami Nishimura (Venonat)
English Eric Stuart (Venomoth)
Koga's Golbat
Main article: Koga's Golbat

During Koga's and Ash's rematch, Koga used his Golbat against Ash's Charmander. Golbat eventually lost to Charmander's strong Fire-type moves, winning Ash the Soul Badge.

Debut The Ninja Poké-Showdown
Voice actors
Japanese Shin-ichiro Miki
English Eric Stuart (EP032)
Shin-ichiro Miki (BW116)
Koga's Scyther
Koga's Scyther only appeared in a flashback in Bad To The Bone. Otoshi's flashback revealed that he defeated Scyther with his Marowak and obtained the Soul Badge.

None of Scyther's moves are known.

Debut Bad To The Bone
At Fuchsia Gym
Koga's Voltorb (multiple)
Voltorb (multiple)
Koga keeps these multiple Voltorb as traps in his Gym. They can be either hidden under the floor or be dropped from the ceiling. Ash, Misty, and Brock first came across one when Ash fell into a trap, stepped on one and it shocked him. Team Rocket attempted to steal the Voltorb from the Gym, and Meowth used these Pokémon as exploding bowling balls and threw them at the heroes.

The Voltorb's only known move is Self-Destruct, which they usually use when a trap is set off.

Debut The Ninja Poké-Showdown
Voice actors
English Eric Stuart

Voice actors

Language Voice actor
Japanese 大塚芳忠 Hōchū Ōtsuka
English Stuart Zagnit
Arabic مروان فرحات Marwan Farhat
Czech Petr Burian
Finnish Arto Nieminen (EP032)
Markus Bäckman (BW116)
European French Robert Guilmard (EP032)
Laurent Bonnet (BW116)
Hungarian Seszták Szabolcs
Norwegian Tommy Karlsen
Polish Radosław Popłonikowski
Brazilian Portuguese Gileno Santoro
Spanish Latin America Gerardo Vázquez (EP032)
Enrique Cervantes (BW116)
Spain Juan Fernández Mejías (EP032)
César Martín (BW116)

Pokémon Origins

Koga appeared briefly in File 3: Giovanni. He was seen losing a Gym battle against Red and handing him a Soul Badge as a proof of his victory.


Koga's Weezing
Weezing is Koga's only known Pokémon. It was used in his Gym battle against Red, but lost.

None of Weezing's moves are known.

Debut File 3: Giovanni


Koga briefly appeared in GOTCHA!.

In the manga

Koga in Magical Pokémon Journey

The Electric Tale of Pikachu

Koga in The Electric Tale of Pikachu

Koga makes a cameo appearance in Pikachu's Excellent Adventure.

In the manga, Jessie, James, and Meowth get trapped in Koga's Gym while searching for the Hidden Village with Ash's Pikachu, a Charmander, a Squirtle, a Kangaskhan, and Tommy. Their battle is only shown briefly in a montage sequence and it is unknown whether Team Rocket was victorious or not. It is also never shown if Ash himself battles Koga.

Magical Pokémon Journey

Koga makes a brief cameo in The Wal Comes Tumbling Down. Walnut, an aspiring ninja master, mentions that Koga is a big inspiration to him.

Pokémon Adventures

Koga uses custom-made Poké Balls that can be thrown as shuriken—perhaps an inspiration for Falkner's later boomerang Poké Balls.


Red, Green & Blue arc

Koga is one of the three villainous heads of Team Rocket, and he serves under Giovanni.

Koga debuts in Raging Rhydon, where he is searching the Moon Stone in Mt. Moon. Here, Koga fights with Red and Misty and forces his Rhyhorn to evolve with a mysterious injection, revealing what happened to Misty's Gyarados when it was kidnapped, but the mission fails. Koga later tries to scare off Red in Lavender Town's Pokémon Tower, and uses a Gastly to reanimate the corpses of dead Pokémon buried there. He also attacks Red with his Arbok. However, Blue has his Charmeleon slice Arbok in half. Under his boss's orders, he captures Articuno and brings it to Saffron City. He is once again defeated by Blue at Silph Co., albeit that he almost killed both of them by not allowing them to reach their Poké Balls by using his Muk, then almost freezing them to death with his Articuno. After he is defeated and knocked out, Red claims Koga's Soul Badge and Blue uses his special Golbat to find out where Team Rocket is holding his grandfather.

Yellow arc

Koga helps the Pallet Town Trainers in the fight against the Elite Four at Cerise Island. Koga is paired with Blue and battles Agatha, but Blue first returns his Golbat to him. When the two of them finally meet Agatha in a cave, she uses her Arbok to cause stalactites to rain down on them, separating them. Agatha then makes Blue and Koga's Golbat (that he got paired up with again) face Agatha's Golbat. Meanwhile, Koga's Arbok had to face Agatha's Arbok, which could change its patterns, allowing it to gain the upper hand over Koga. When Blue was blinded from a Haunter's Lick, Koga started throwing his shuriken balls. Agatha thought this was a desperate tactic, but in reality they were Pokémon holding Paralyze Heals. Koga was hoping at least one of them would get to Blue, which it did. Blue then joins him, and Koga commands his Golbat to use Leech Life on himself. His blood is then put on Arbok's torso to prevent its ability to change its pattern. Without Arbok's ability, Agatha was seemingly defeated.

However, in reality, Agatha just pretended to be defeated and had her Gengar masquerade as Koga and Blue's shadow to slowly suck the life out of them. The two did not realize this at first, and reasoned Koga's loss of energy was due to his sudden loss of a large amount of blood. After traveling through the maze of stalactites for a while, they found themselves back where they started with Agatha nowhere to be found. They then figured out her plan and defeated the Gengar, but not before Koga is nearly crushed in the collapsing terrain of the destroyed battleground. He narrowly escapes using his Muk to defend him in his wounded state.

Gold, Silver & Crystal arc

Unlike the other two Rocket Admins, who were instructed to return and manage their Gyms, Koga could not be reached by Giovanni following the events in Cerise Island. His status for most of this chapter was unclear, with his daughter Janine being left in charge of the Gym and with no knowledge of his whereabouts. Janine is worried for her missing father, but nonetheless opposes his criminal ties.

Eventually Koga would reappear with a new partner, Bruno, an unwilling member of the Elite Four who had saved Koga when Cerise was about to collapse. The two had since been training together for a while until they met their former opponents Red and Blue, whose Rhydon was drilling underground towards Ilex Forest. Towards the end of the series, Koga and Bruno meet Will and Karen in the Ilex Forest and persuaded the pair of defeated Team Rocket members to work together with them, thus forming what would eventually become a new and official Elite Four.

HeartGold & SoulSilver arc

After a long absence, Koga returns, along with the rest of the Elite Four, in Attaway, Aipom!. They face Gold in the Pokéathlon Power Course, with Koga taking part in the Circle Push event and easily winning it. Despite this, however, Gold manages to later make a comeback in the final event and win the course.


This is a listing of Koga's Pokémon in the Pokémon Adventures manga.

Koga's Rhyhorn

Koga's Rhydon
Rhyhorn → Rhydon
Koga's Rhydon was introduced as a Rhyhorn, where it fought against Red and Pika. When it was losing, Koga injected in with a mysterious needle, forcing it to evolve. In its evolved form, it was too much for both Red and Misty to handle, and they had to escape the battle by distracting Rhydon with an electrically charged boulder. It hasn't been seen again.

Rhydon's known moves are Rock Throw and Horn Drill.

Debut Raging Rhydon
Koga's Gastly
Gastly appeared in the Pokémon Tower, possessing the bodies of the dead Pokémon that were buried there, along with Blue and his Charmeleon. Red's Bulbasaur managed to destroy it by sucking up Gastly's gas form, and expelling it in a Solar Beam, freeing Blue in the process.

None of Gastly's moves are known.

Debut Sigh for Psyduck
Koga's Arbok
Arbok is one of Koga's most powerful Pokémon. It can regenerate itself even if it's cut in half, so as long as its head remains intact. It was used against both Blue and Agatha. It also possesses the ability to temporarily control a detached body part, such as its tail.

Arbok's known moves are Acid and Glare.

Debut That Awful Arbok
Koga's Golbat
Main article: Koga's Golbat

Koga's Golbat is much smaller than the average Golbat. His Supersonic can be used to create a magic mirror for scrying to see things from a distance, even if walls or land are in the way. After Blue defeated Koga at Silph Co., he stole Golbat to locate Professor Oak but later returned him to his rightful owner on Cerise Island.

Debut That Awful Arbok
Koga's Grimer
Koga wears a Grimer on his shoulder in the form of a ninja outfit in Pokémon Adventures. He used him extensively to smother Blue, preventing him from breathing and restricting his movements so that he would be unable to call on his Pokémon.

None of Grimer's moves are known.

Debut Go for the Golbat
Koga's Ekans
Koga has an Ekans on his arm. It was used first to dispatch Blue's Scyther in Silph Co., and during the battle of Cerise Island to get a Parlyz Heal it held to Blue. Ekans was later used in the HeartGold & SoulSilver arc, where it fought with Bruno's Hitmonlee against Lance's Dragonite, but they were easily overtaken by its Hyper Beams.

None of Ekans's moves are known.

Debut Go for the Golbat
Koga's Muk
Koga's Muk was used on Cerise Island to battle the Elite Four, and proved useful in his survival after the island began to crumble. In the HeartGold & SoulSilver arc, he was used during the Circle Push event of the Pokéathlon.

Muk's only known move is Poison Gas.

Debut Karate Machop!
Koga's Weezing
Koga's Weezing was used on Cerise Island to battle Agatha, mostly to bide time until Arbok regenerated.

Weezing's only known move is Smog, and its Ability is Levitate.

Debut Weezing Winks Out
Koga's Koffing
Koga used Koffing against Agatha on Cerise Island. He was instrumental in defeating her Gengar when he used his gas to convey a message to Blue.

Koffing's only known move is Poison Gas, and his Ability is Levitate.

Debut Striking Golduck
Koga's Tentacruel
Koga used Tentacruel to help Red and Blue as the two Pokédex Holders were digging to the Ilex Forest.

None of Tentacruel's moves are known.

Debut The Last Battle X
Koga's Articuno
Main article: Legendary birds (Adventures)

This Articuno was originally seen at the Seafoam Islands. Even though Red stopped one attempt, Team Rocket was finally able to catch this legendary bird because of its energy loss, and had it sent over for Koga afterwards. During the battle between Red, Blue, Green and Lt. Surge, Koga and Sabrina, it was merged with Zapdos and Moltres to create Thu-Fi-Zer after Sabrina took matters into her own hands. Once defeated and freed, it returned to the wild, where it was later caught by Green alongside its fellow Legendary birds.

Debut You Know...Articuno!

Pokémon Pocket Monsters

Koga in Pokémon Pocket Monsters
Koga as a Johto Elite Four member

Koga first appeared in Save The Chansey!!. At the beginning of the story, he was depicted as having a greedy personality.

He hired a Chansey torturer to kidnap several Chansey because he wanted them for himself. Red sneaked in with Clefairy and Pikachu to rescue the Chansey. However, Koga spotted them and sent out Koffing and Grimer to stall them. However, Clefairy defeated them both and rescued the Chansey.

In Aim to be the No. 1 Pokémon!!, Koga, now reformed, was revealed to have registered for the No. 1 Pokémon Contest. Koga participates with Ninetales but loses since Ninetales did not dazzle the audience.

After Red's travels in Johto, Koga is revealed to have joined the Johto Elite Four in A Challenge to the Elite Four!. He, along with Will and Bruno fell from the Elite Four Tower, seemly defeated by Karen. Red asks them what happened, but Koga asks him to ask Karen directly. It is later revealed that Karen decided to tell them a joke after an exhausting training session, and they fell down the building after hearing the joke.


Koga's Koffing
Koffing was sent out as an obstacle so Red and the others wouldn't get to Chansey.

None of Koffing's moves are known.

Debut Save The Chansey!!
Koga's Grimer
Grimer is another Pokémon of Koga's. It first appeared rising from the trash cans nearby.

None of Grimer's moves are known.

Debut Save The Chansey!!
Koga's Ninetales
Koga sent out Ninetales to participate in the No. 1 Pokémon Contest. Its beauty managed to dazzle the audience but it was not enough for it to win.

None of Ninetales's moves are known.

Debut Aim to be the No. 1 Pokémon!!
Koga's Muk
Muk is one of Koga's Pokémon. It appeared on the top floor of the Pokémon League when Red found Karen up there. It is unknown if Muk evolved from Grimer, or if it is a separate Pokémon.

None of Muk's moves are known.

Debut A Challenge to the Elite Four!
Koga's Chansey
Chansey (multiple)
These Chansey were performers at a circus held by a Juggler. They were kidnapped by the Chansey Torturer for Koga's greed. They were strong enough to break free from the ropes that were tying them.

None Chansey's moves are known.

Debut Save The Chansey!!

Pokémon Zensho

Koga in Pokémon Zensho

Koga appears in PZ06, where he is seen in the Safari Zone training his ninjutsu skills. He accidentally throws one of his stars at Satoshi but misses luckily. Afterwards, Satoshi's Ditto volunteers to battle him and wins.


Koga's Weezing
Weezing is Koga's only known Pokémon. It was up against Ditto. When Ditto transformed into its master, Weezing became very confused and self-destructs afterwards, giving Satoshi the win.

Weezing's only known move is Selfdestruct.

Debut Fuchsia City

In the TCG

Koga has an eponymous Theme Deck in the Gym Challenge expansion.


KogaTCG1.jpg KogaVS.png
Koga and the Soul Badge Koga's updated VS art


This listing is of cards mentioning or featuring Koga or his Pokémon in the Pokémon Trading Card Game.

Koga's Pokémon
Cards listed with a blue background are only legal to use in the current Expanded format.
Cards listed with a green background are legal to use in both the current Standard and Expanded formats.
Card Type English
Rarity # Japanese
Rarity #
Koga's Beedrill Grass Gym Challenge Rare Holo 9/132 Challenge from the Darkness Rare Holo  
Koga's Ditto Colorless Gym Challenge Rare 10/132 Challenge from the Darkness Rare Holo  
Koga's Arbok Grass Gym Challenge Rare 25/132 Challenge from the Darkness Rare  
Koga's Muk Grass Gym Challenge Rare 26/132 Challenge from the Darkness Rare  
Koga's Pidgeotto Colorless Gym Challenge Rare 27/132 Challenge from the Darkness Rare  
Koga's Golbat Grass Gym Challenge Uncommon 46/132 Challenge from the Darkness Uncommon  
Koga's Kakuna Grass Gym Challenge Uncommon 47/132 Challenge from the Darkness Uncommon  
Koga's Koffing Grass Gym Challenge Uncommon 48/132 Challenge from the Darkness Uncommon  
Koga's Pidgey Colorless Gym Challenge Uncommon 49/132 Challenge from the Darkness Uncommon  
Koga's Weezing Grass Gym Challenge Uncommon 50/132 Challenge from the Darkness Uncommon  
Koga's Ekans Grass Gym Challenge Common 77/132 Challenge from the Darkness Common  
Koga's Grimer Grass Gym Challenge Common 78/132 Challenge from the Darkness Common  
Koga's Koffing Grass Gym Challenge Common 79/132 Challenge from the Darkness Common  
Koga's Pidgey Colorless Gym Challenge Common 80/132 Challenge from the Darkness Common  
Koga's Tangela Grass Gym Challenge Common 81/132 Challenge from the Darkness Common  
Koga's Weedle Grass Gym Challenge Common 82/132 Challenge from the Darkness Common  
Koga's Zubat Grass Gym Challenge Common 83/132 Challenge from the Darkness Common  
Koga's Crobat Grass       Pokémon VS Common 079/141
Koga's Forretress Grass       Pokémon VS Common 080/141
VenomothGX Grass Unbroken Bonds Ultra-Rare Rare 12/214 Night Unison RR 002/055
Unbroken Bonds Rare Ultra 193/214 Night Unison SR 056/055
Unbroken Bonds Rare Secret 216/214 Night Unison HR 064/055
Other related cards
Card Type English
Rarity # Japanese
Rarity #
Koga T Gym Challenge Rare Holo 19/132      
Gym Challenge Rare 106/132 Challenge from the Darkness Rare  
Fuchsia City Gym T [St] Gym Challenge Uncommon 114/132 Challenge from the Darkness Uncommon  
Koga's Ninja Trick T Gym Challenge Uncommon 115/132 Challenge from the Darkness Uncommon  
Koga's Ninja Gym T [St]       Unnumbered Promotional cards    
Gym Badge I XY Black Star Promos   XY207 XY-P Promotional cards    
Koga's Trap Su Unbroken Bonds Uncommon 177/214 Night Unison U 050/055
Unbroken Bonds Rare Ultra 211/214 Night Unison SR 063/055
Hidden Fates Uncommon 59/68      

In the TFG

Koga appears as a Trainer figure in the Groundbreakers expansion pack of the Pokémon Trading Figure Game.


  • Out of the original Generation I Gym Leaders, Koga has the fewest Trainer cards in the Gym Leader sets of the TCG.
  • Koga is the first Elite Four member who was introduced in an earlier generation and then attained the title in a later generation.
  • Koga is the only Gym Leader introduced as of Generation V who does not appear in Black 2 and White 2. This is due to his status as an Elite Four member in the Generation II and IV games.
  • Koga uses a Venomoth on his team in all of the games in which Sabrina does not use one on her team, and vice-versa.
  • Koga and Janine are the only two Gym Leaders to have the same slogan in different generations.


Language Name Origin
Japanese キョウ Kyou From 杏 kyō (apricot), corresponding to the character's kun'yomi reading being anzu
English, German, Spanish,
French, Italian,
Brazilian Portuguese
Koga From 甲賀流 Kōga-ryū, a school of ninjutsu
Korean 독수 Doksu From 독 (毒) dok (poison) and 독수 (毒手) doksu (vicious means)
Chinese (Mandarin) 阿桔 Ā Jié From 桔梗 jiégěng / gitgáng (Chinese bellflower)
Chinese (Cantonese) 阿桔 Ā Git *
阿梗 Ā Gáng *
Thai เคียว Khiao Transcription of his Japanese name
Vietnamese Kyo Transcription of his Japanese name

Related articles


Gym Leaders of the Kanto region
Pewter Gym Boulder Badge
Brock OD.png
Cerulean Gym Cascade Badge
Misty OD.png
Vermilion Gym Thunder Badge
Lt Surge OD.png
Lt. Surge
Celadon Gym Rainbow Badge
Erika OD.png
Fuchsia Gym Soul Badge
Koga OD.png Janine OD.png
Koga Janine
Saffron Gym Marsh Badge
Sabrina OD.png
Cinnabar Gym Volcano Badge
Blaine OD.png
Viridian Gym Earth Badge
Giovanni OD.png Blue
Giovanni Blue

Indigo League
Generations I, III, and VII
VSLorelei PE.png
Elite Four
VSBruno PE.png
Elite Four
VSAgatha PE.png
Elite Four
VSLance PE.png
Elite Four
Blue Trace
Blue Trace
Generations II and IV
Elite Four
Elite Four
Elite Four
Elite Four

Members of Team Rocket

Giovanni (animeAdventuresPocket MonstersMasters)
Madame Boss (anime only) • Masked Man (Adventures only)


Archer (Masters) • Ariana (Masters) • Petrel (Masters) • Proton (Masters)
Anime only: Iron-Masked Marauder
Adventures only: CarlShamWill (former) • Karen (former)
Golden Boys only: Grey


Jessie (Masters), James (Masters), & Meowth (JJM)
Koga, Lt. Surge, & Sabrina (Triad) (Adventures only; former)
Ken, Al, & Harry (TRET) (Adventures only)
Carr, Sird (former), & Orm (T3B) (Adventures only)


Anime only: Butch & Cassidy (former) • Attila & HunAnnie & Oakley (dub only)


Anime only: Dr. FujiDr. NambaSebastianDr. Zager
Adventures only: Blaine (former)


GruntsRocket BrothersRBYFRLG/Rocket SistersPE
Anime only: DominoRocket ScoutWendyTysonJubeiViper
Christopher (former) • Matori (Matori Matrix) • PierceGozu
Radio drama only: MiyamotoMondo
How I Became a Pokémon Card only: Kaede

Main characters
Ash KetchumPikachuGary OakRitchieMay OakProfessor OakDelia KetchumJessieJamesMeowth
Gym Leaders
A.J.AyaBillDamianDarioDuplicaEevee brothersGiselleJeanette FisherOfficer JennyJoeNurse Joy
Lara LaramieMahriMelanieMikeyMimiProfessor OrvillePotterFlorinda ShowersRubySamuraiTommy

Project CharacterDex logo.png This game character article is part of Project CharacterDex, a Bulbapedia project that aims to write comprehensive articles on each character found in the Pokémon games.