subdirectory_arrow_right Pokémon LeafGreen Version (Game), Pokémon Red Version (Game), Pokémon Yellow Version: Special Pikachu Edition (Game), Pokémon Blue Version (Game), Pokémon SoulSilver Version (Game), Pokémon Silver Version (Game), Pokémon Crystal Version (Game), Pokémon FireRed Version (Game), Pokémon Gold Version (Game)
▲
1
▼
A recurring oddity in the Pokémon games is that the Gym Leader and later Elite Four member Koga, the Kanto Region's Poison-type expert, threatens to defeat his opponents with both Poison and Sleep tactics. In Red and Blue, he states:
In Gold, Silver, Crystal, and their remakes HeartGold and SoulSilver, he states:
In FireRed and LeafGreen, he states:
Despite this, the only game in the series where Koga's main team uses any Sleep-inducing moves is Yellow, where two of his Venonats have Sleep Powder. In contrast, every one of Koga's teams has incorporated Poisoning moves, with some of his teams being entirely composed of Pokémon using such moves. Although possibly a mistake, this might also tie into the theme of misdirection, which would be fitting for the ninja-themed Fuchsia Gym.
"You shall feel the despair of poison and sleep techniques!"
In Gold, Silver, Crystal, and their remakes HeartGold and SoulSilver, he states:
"Confusion, sleep, poison... Prepare to be the victim of my sinister technique!"
In FireRed and LeafGreen, he states:
"Poison brings steady doom. Sleep renders foes helpless."
Despite this, the only game in the series where Koga's main team uses any Sleep-inducing moves is Yellow, where two of his Venonats have Sleep Powder. In contrast, every one of Koga's teams has incorporated Poisoning moves, with some of his teams being entirely composed of Pokémon using such moves. Although possibly a mistake, this might also tie into the theme of misdirection, which would be fitting for the ninja-themed Fuchsia Gym.
Evolution of Fuchsia Gym Leaders:
https://www.youtube.com/watch?v=ih3lpHU73NA
Pokémon Yellow - Venonat Sleep Powder:
https://www.youtube.com/watch?v=t0AVV5nZYFg
Pokémon Crystal - Koga's Elite Four appearance:
https://www.youtube.com/watch?v=Lq9pvmGEp6U
Koga's teams on Bulbapedia:
https://bulbapedia.bulbagarden.net/wiki/Koga
https://www.youtube.com/watch?v=ih3lpHU73NA
Pokémon Yellow - Venonat Sleep Powder:
https://www.youtube.com/watch?v=t0AVV5nZYFg
Pokémon Crystal - Koga's Elite Four appearance:
https://www.youtube.com/watch?v=Lq9pvmGEp6U
Koga's teams on Bulbapedia:
https://bulbapedia.bulbagarden.net/wiki/Koga
subdirectory_arrow_right Pokémon SoulSilver Version (Game)
▲
1
▼

In-game footage of the Sinjoh Ruins cutscene:
https://www.youtube.com/watch?v=hi6WyRP6Cog
Twitter post by Centro Leaks (an account documenting material from the Teraleak) showcasing Masuda's lineage chart:
https://x.com/CentroLeaks/status/1845289910321762652
YouTube video discussing the Teraleak, including coverage of Masuda's lineage chart and the Sinjoh Ruins cutscene:
https://www.youtube.com/watch?v=FQs80F0dDdI
https://www.youtube.com/watch?v=hi6WyRP6Cog
Twitter post by Centro Leaks (an account documenting material from the Teraleak) showcasing Masuda's lineage chart:
https://x.com/CentroLeaks/status/1845289910321762652
YouTube video discussing the Teraleak, including coverage of Masuda's lineage chart and the Sinjoh Ruins cutscene:
https://www.youtube.com/watch?v=FQs80F0dDdI
subdirectory_arrow_right Pokémon SoulSilver Version (Game)
▲
1
▼

Information on The Cutting Room Floor page about Shiny Form:
https://tcrf.net/Pok%C3%A9mon_HeartGold_and_SoulSilver#Spiky-eared_Pichu
Video showing off the Shiny Form:
https://www.youtube.com/watch?v=994XEdddWNE
Video of the Ilex Forest Event:
https://www.youtube.com/watch?v=2OORQXikg3w
https://tcrf.net/Pok%C3%A9mon_HeartGold_and_SoulSilver#Spiky-eared_Pichu
Video showing off the Shiny Form:
https://www.youtube.com/watch?v=994XEdddWNE
Video of the Ilex Forest Event:
https://www.youtube.com/watch?v=2OORQXikg3w
subdirectory_arrow_right Pokémon SoulSilver Version (Game)
▲
2
▼
The two Bird Keeper trainers that you face on Route 20 are named Bert and Ernie, referencing the Muppet duo from the children's television series "Sesame Street" who have a fondness for pigeons and rubber ducks respectively.
Screenshot and in-game footage:
https://www.youtube.com/watch?v=YU8nLqXB6fY
https://twitter.com/HistoryMuppet/status/1497977914465345547
Bert's association with pigeons:
https://www.youtube.com/watch?v=RK9nRJXAUzg
Ernie's association with rubber ducks:
https://www.youtube.com/watch?v=Mh85R-S-dh8
https://www.youtube.com/watch?v=YU8nLqXB6fY
https://twitter.com/HistoryMuppet/status/1497977914465345547
Bert's association with pigeons:
https://www.youtube.com/watch?v=RK9nRJXAUzg
Ernie's association with rubber ducks:
https://www.youtube.com/watch?v=Mh85R-S-dh8
subdirectory_arrow_right Pokémon SoulSilver Version (Game)
▲
2
▼

The game released eventually on April 2nd, 2010 - one week later than the pan European release date (March 26th, 2010).
Archived Dutch article, mentioning that an Intertoys (Dutch toy store retail chain) employee stumbled upon the save bug, with screenshot of said error:
https://web.archive.org/web/20100604191712/http://www.insidegamer.nl/nintendods/pokmonheartgold/nieuws/29248/UPDATE-Intertoys-Pokmon-HeartGold-uitgesteld-vanwege-bug.html
Announcement on the Dutch website of Nintendo - sadly the actual announcement text is lost to time:
https://www.nintendo.nl/Nieuws/2010/Lancering-Pokemon-HeartGold-Version-en-Pokemon-SoulSilver-Version-uitgesteld-259989.html
Announcement on the new release date for Flanders and the Netherlands - verifying that both regions having been affected by the delay and announced the new release date - April 2nd:
https://www.nintendo.nl/Nieuws/2010/Lanceerdatum-Pokemon-HeartGold-Version-en-Pokemon-SoulSilver-Version-bevestigd-259986.html
Announcement for a (Dutch) teaser website of Pokémon HeartGold and SoulSilver - confirming its earlier release date being March 26th in the article:
https://www.nintendo.nl/Nieuws/2010/Nieuwe-Pokemon-HeartGold-Version-Pokemon-SoulSilver-Version-teasersite-geopend--252309.html
https://web.archive.org/web/20100604191712/http://www.insidegamer.nl/nintendods/pokmonheartgold/nieuws/29248/UPDATE-Intertoys-Pokmon-HeartGold-uitgesteld-vanwege-bug.html
Announcement on the Dutch website of Nintendo - sadly the actual announcement text is lost to time:
https://www.nintendo.nl/Nieuws/2010/Lancering-Pokemon-HeartGold-Version-en-Pokemon-SoulSilver-Version-uitgesteld-259989.html
Announcement on the new release date for Flanders and the Netherlands - verifying that both regions having been affected by the delay and announced the new release date - April 2nd:
https://www.nintendo.nl/Nieuws/2010/Lanceerdatum-Pokemon-HeartGold-Version-en-Pokemon-SoulSilver-Version-bevestigd-259986.html
Announcement for a (Dutch) teaser website of Pokémon HeartGold and SoulSilver - confirming its earlier release date being March 26th in the article:
https://www.nintendo.nl/Nieuws/2010/Nieuwe-Pokemon-HeartGold-Version-Pokemon-SoulSilver-Version-teasersite-geopend--252309.html
subdirectory_arrow_right Pokémon SoulSilver Version (Game)
▲
1
▼
If playing on a counterfeit cartridge, attempting to play Voltorb Flip in either the Goldenrod Game Corner or Celadon Game Corner will crash the game. It's unclear if this is an Anti-Piracy measure, or if it's a mistake in the ROM of Heart Gold and Soul Silver.
subdirectory_arrow_right Pokémon SoulSilver Version (Game)
▲
1
▼

subdirectory_arrow_right Pokémon SoulSilver Version (Game)
▲
1
▼
In Cianwood City, if you have only one Pokemon in your team and it does not know Fly or Surf, a generous Trainer in the island's Pokemon Center will give you a Level 15 Tentacool, claiming to have caught too many and was just about to release it before he noticed your situation. This was added to prevent the player from softlocking the game in Cianwood City by giving the player a Pokemon that can learn the Surf HM in order to leave. Additionally, it is possible for the Tentacool given to you to be Shiny.
subdirectory_arrow_right Pokémon Silver Version (Game), Pokémon Crystal Version (Game), Pokémon Gold Version (Game), Pokémon SoulSilver Version (Game)
▲
1
▼
In Generation II, Cerulean and Fuchsia City didn't use their music from Generation I, and shared themes with Celadon City and Viridian City, respectively. However, when remade, Cerulean and Fuchsia were given their Generation I theme again, but because they didn't have this theme in Generation II, when using the GB Sounds, an original Generation II-styled remix was used.
subdirectory_arrow_right Pokémon SoulSilver Version (Game)
▲
1
▼
HeartGold and SoulSilver include the Champions from each of the previous paired versions: Blue from Red and Green, Lance from Gold and Silver, Steven Stone from Ruby and Sapphire, and Cynthia from Diamond and Pearl.
subdirectory_arrow_right Pokémon SoulSilver Version (Game)
▲
1
▼
If you interact with your Snorlax in Mt. Silver in the game, it will say; "SNORLAX is feeling very eager". This is due to Red in Mt. Silver also owning a Snorlax. Unique messages will also appear if you interact with Pikachu or Charizard.
subdirectory_arrow_right Pokémon SoulSilver Version (Game)
▲
1
▼
The Kimono Girls' dance to summon a member of the tower duo primarily consists of circular motions. In HeartGold, they move clockwise, and in SoulSilver, they move counter-clockwise.
subdirectory_arrow_right Pokémon SoulSilver Version (Game)
▲
1
▼
The Togepi that hatches from the egg given to the player by Professor Elm has the egg move Extrasensory. This means that the Togepi's father was either a Hoothoot or a Noctowl.
subdirectory_arrow_right Pokémon SoulSilver Version (Game), Pokémon Crystal Version (Game), Pokémon Silver Version (Game), Pokémon Gold Version (Game)
▲
1
▼
When you team up with Lance in the Rocket HQ. He has a LVL.40 Dragonite which is 15 levels lower that what it should be. Also, when you fight him for the first time as champion, his three Dragonites are a few levels lower. This also happened in the Game Boy versions.
subdirectory_arrow_right Pokémon SoulSilver Version (Game)
▲
1
▼
These 2 games mark the first time that the English versions were announced before the games were released in Japan.
subdirectory_arrow_right Pokémon SoulSilver Version (Game)
▲
1
▼
If the game detects that it is being played on a flash cart or emulator, it will freeze at the beginning of a battle with the player's Pokeballs spinning constantly.
subdirectory_arrow_right Pokémon SoulSilver Version (Game)
▲
1
▼

Related Games
Pokémon X
Pokémon White Version
Pokémon Ruby Version
Pokémon Ultra Sun
Pokémon Legends: Arceus
New Trivia!
Pokémon FireRed Version
My Pokémon Ranch
Pokémon Sun
Hey You, Pikachu!
New Trivia!
Pokémon Blue Version
Pokémon Brilliant Diamond
Pokémon Emerald Version
Pokémon Scarlet
Pokémon Shining Pearl
Pokémon: Let's Go, Pikachu!
New Trivia!
Pokémon Gold Version
Pokémon Sword
Pokémon Puzzle League
New Trivia!
Pokémon Crystal Version
Pokémon Platinum Version
Pocket Monsters Stadium
Pokémon Violet
New Trivia!
Pokémon LeafGreen Version
Pokémon Picross
Pokémon Conquest
Pokémon Go
Pokémon Moon
Pokémon Home
Pokémon Pinball
Pokémon Green Version
New Trivia!
Pokémon Yellow Version: Special Pikachu Edition
Pokémon Omega Ruby
Pokkén Tournament
Pokémon Alpha Sapphire
Pokémon Mystery Dungeon: Blue Rescue Team
New Trivia!
Pokémon Red Version
Pokémon Diamond Version
Pokémon Black Version 2
Pokémon: Let's Go, Eevee!
Pokémon Battle Revolution
Pokémon Black Version
Pokémon Snap
PokéPark Wii: Pikachu's Adventure
Pokémon Y
Pokémon Picross
Pokémon White Version 2
Pokémon Shield
Pokémon Ultra Moon
Pokémon Sapphire Version
New Trivia!
Pokémon SoulSilver Version