Vermilion Gym

The Vermilion Gym (Japanese: クチバジム Kuchiba Gym) is the official Gym of Vermilion City. It is based on . The Gym Leader is Lt. Surge. s who defeat him receive the .
==In the games==
===Core series games===
 
 
In all games where HMs are present, either or is required to access the Vermilion Gym. In Pokémon: Let's Go, Pikachu! and Let's Go, Eevee!, the Secret Technique Chop Down is required instead; the player cannot use Sea Skim due to the barriers erected around the Gym's exterior. The Gym guide declares that this is the prerequisite for challenging the Gym. Thus, in Generation VII, there is effectively no additional prerequisite for challenging the Gym, unlike most other Kanto Gyms.
Vermilion Gym appears in all games that include the Kanto region, appearing much the same in each: the main room contains 15 trash cans in three rows and five columns, and Trainers are scattered about this room. Another room lies behind the main room, guarded by electric doors in Generation I, and an electric fence from Generation III onward. The only way to get in the final room, where Lt. Surge is located, is to find two hidden switches inside the trash cans. Discounting glitches, the second switch is always next to (orthogonally adjacent to) the first switch. If the first switch is found, but the player incorrectly guesses the second one, the traps reset.
====Gym puzzle====
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* The first switch will be in one of eight cans, forming a checkerboard pattern starting from the corners.
* Due to a glitch, the top-left can can always contain the second switch regardless of whether the first can is adjacent to it.
** If the first switch was in one of the middle column cans, the second will be in the can to the left, right, middle, or in the top-left can.
** If the first switch was in the rightmost column, the second will be in the can to the middle or in the top-left can.
** If the first switch was anywhere else, the second will be in the can to the right or in the top-left can.
In all cases, the positions for the switches have even chances of being selected.
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* The first switch can be in one of eight cans as in Red and Blue.
* If the first can was one of the four corners:
** There is a 25% chance that one neighbor contains the second switch, a 25% chance that the other neighbor contains the second switch, and a 50% chance that both neighbors contain the second switch (in which case either choice will unlock the door).
* If the first can was the one in the second column:
** There is a 50% chance that the west and north neighbors both contain the second switch, a 25% chance that only the south neighbor contains the second switch, and a 25% chance that only the east neighbor contains the second switch.
* If the first can was the one in the fourth column:
** There is a 50% chance that the west and north neighbors both contain the second switch, and a 50% chance that the south and east neighbors both contain the second switch.
* If the first can was the top can of the middle column:
** Due to yet another glitch, the game attempts to randomly pick from 256 possible pairs of cans for the second switch, most of which correspond to blank neighbor data or partially-invalid data about the neighbors of other canshttps://github.com/pret/pokeyellow/blob/793c715ba253e08d2807d04d128765ca305d6b15/engine/vermilion_gym_trash_cans.asm#L70. As a result, there is a 216/256 (~84%) chance that only the top-left can has the second switch, a 2/256 (~0.8%) chance that no can has the second switch at all, and a 38/256 (~15%) chance that either one or two cans anywhere among the four rightmost columns have the second switch (with uneven probability).
* If the first can was the bottom can of the middle column:
** The above glitch applies but with slightly different data, resulting in a 225/256 (~88%) chance that only the top-left can has the second switch, a 1/256 (~0.4%) chance that no can has the second switch at all, and a 30/256 (~12%) chance that either one or two cans among the four rightmost columns have the second switch.
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The traps are not turned on.
=====Pokémon FireRed, LeafGreen, HeartGold, and SoulSilver=====
The first switch is randomly in one of the 15 cans, and the second switch is randomly in one of the cans next to the first switch.
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The fourth can in the bottom row is an empty red trash can, while the second can in the middle row is an empty blue trash can. When defeated, the Trainers in the Gym hint that a can next to the blue can contains a switch, while none of the cans next to the red can contain a switch. Together this narrows the switch locations down to two pairs of possibilities, with the correct locations being the center trash can and the can directly north of it. These locations will remain fixed even if the traps are reset. The two switches can be activated in either order.
====Appearance====
=====Interior=====
====Items====
====Trainers====
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Lt. Surge has one X Speed per Pokémon, using it randomly 25% of the time.
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Lt. Surge has an X Speed, using it randomly 25% of the time.
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Lt. Surge has a Hyper Potion.
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Lt. Surge has a Super Potion and a Full Heal.
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=====Pokémon: Let's Go, Pikachu! and Let's Go, Eevee!=====
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======Rematch======
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===Side series games===
A field based on the Gym appears in Pokémon Stadium's Gym Leader Castle and 's Kanto Gym Leader Castle.
====Trainers====
=====Pokémon Stadium=====
======Round 1======
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======Round 2======
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=====Pokémon Stadium 2=====
======Round 1======
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======Round 2======
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===Spin-off games===
====Pokémon Masters EX====
Artwork depicting the Vermilion Gym is seen in 's mindscape.
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====Pokémon Trading Card Game Pocket====
In Pokémon Trading Card Game Pocket, the interior of Vermilion Gym as depicted in can be seen in the illustration of the card.
==In animation==
===Pokémon the Series===
In its first appearance, the Gym resembled a warehouse with lightning bolts painted on it. In , it had gone through major renovations, with the interiors now resembling the Gym's appearance in Pokémon: Let's Go, Pikachu! and Let's Go, Eevee!. There are also metallic plates along the sides of the battlefield. Several s and personnel dressed in military uniforms also work at the Gym, including Steve and Tony.
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The Vermilion Gym first appeared in Electric Shock Showdown. and arrived at the Gym for Ash's third Gym battle, with Surge calling Ash a baby and calling him out on not having evolved his yet. Ash was determined to prove Surge wrong, but his Pikachu was easily defeated by Surge's . Later, Ash challenged Surge to a rematch, having figured out that Raichu's weakness was that it had evolved too fast, never learning the speed moves it could only learn as a . With his superior speed and new and , Ash's Pikachu was able to overwhelm Surge's Raichu and defeat it, earning Ash the and Surge's respect.
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In Destination: Coronation!, over a thousand episodes later, Ash revisited the Gym in order to have his first World Coronation Series match against Visquez, a substitute Gym Leader looking after the Gym while Lt. Surge was away . Upon arrival, Ash learned that Visquez had heard of his Vermilion Gym battle from Lt. Surge. After a tough battle, Ash emerged victorious, increasing his World Coronation Series ranking.
====Gallery====
Original design	Original battlefield
 	
====Pokémon used in the Gym====
=====Used by Lt. Surge=====
=====Used by Visquez=====
===Pokémon Origins===
 was seen visiting the Vermilion Gym in File 2: Cubone. He had a tough battle against the Gym Leader, Lt. Surge, but was able to pull through and earn the .
====Pokémon used in the Gym====
==In the manga==
===Pokémon Zensho===
The Vermilion Gym appeared in PZ04, where challenged Lt. Surge. The Gym battle was conducted between and Lt. Surge's . Even though Charmeleon was driven into a corner, it was able to use a piece of the barbed-wire fence surrounding the arena to tie Electabuzz up and then finish it off with a attack.
After the battle, Surge confessed that his tough attitude was just a facade and he considered himself a coward for having left a fellow soldier of his to die once. To his delight, however, said soldier, the captain of the S.S. Anne, turned out to be alive and well, so Surge rewarded Satoshi with a out of gratitude, while the captain gave him .
==In the TCG==
The Vermilion Gym was featured in the TCG as both a Japan-exclusive and as a card. The following is a list of cards mentioning or featuring Vermilion City Gym in the Pokémon Trading Card Game.
==Trivia==
* In , the Gym guide tells the player that the Gym's traps were temporarily out of order, but were recently repaired. This is a cross-generational reference to , where this was true.
* In the English versions of , the Gym guide mistakenly refers to the type as the type. This is likely an oversight derived from his dialogue in the English versions of the Generation I games, where he instead refers to Flying-type by describing them as "bird Pokémon"; in the Japanese versions of the Generation I games and FireRed and LeafGreen, he clearly mentions types and correctly identifies the Flying type as ひこうタイプ (the Bird type is とりタイプ in Japanese).
* In Pokémon Ultra Sun and Ultra Moon, the unofficial Kantonian Gym in Malie City is based on the Vermilion Gym. The novelty Badge received by defeating its is also based on the Thunder Badge.
==References==
==Related articles==
Category:Gyms
Category:Kanto Gyms
de:Pokémon-Arena von Orania City
es:Gimnasio Pokémon de Ciudad Carmín
fr:Arène de Carmin sur Mer
it:Palestra di Aranciopoli
ja:クチバジム
zh:枯葉道館