A famous museum is located in the northwestern part of Pewter City and is one of the city's main attractions. The main building is open to the public for 50 and features several historical artifacts, including Aerodactyl and KabutopsFossils, and a model of a space shuttle.
There are two floors to explore in the Pewter Museum of Science. The first floor holds the front desk and a Fossil exhibit containing the Fossils of Aerodactyl and Kabutops. The second floor hosts a space exhibit featuring a Space Shuttle and a large Moon Stone that fell onto Mt. Moon The player is able to explore the museum at any time, after paying the 50 admission fee.
Once the ability to use Cut out of battle is gained, the player can sneak into the back of the museum and acquire the Old Amber from a scientist there, allowing the player to revive an Aerodactyl later in the game. In FireRed and LeafGreen, there is also a Move Tutor who will teach Seismic Toss to one of the player's compatibe Pokémon.
Other known members include Camper Jerry, Camper Liam, Brock's father, Flint, and Brock's mother, Lola.
Pewter Gym appears in all games set in the Kanto region, appearing much the same in each: a small building with a Japanese rock garden inside, one Trainer, and the Gym Leader Brock waiting on a large stone pedestal. In the Generation I games and their Generation III remakes, whenever the player tries to leave Pewter City, a boy will lead them to the front of the Gym if the player has not earned their Boulder Badge yet.
In the Generation I games and their remakes, there's a notice about thieves that have been stealing Pokémon fossils from Mt. Moon and to contact Pewter Police with any information to assist them in stopping the troublemakers.
Pewter City first appeared in Showdown in Pewter City, where Ash decided to challenge the Pewter Gym for his first Badge. After suffering his first loss to Brock, Flint caught up with Ash and directed him to an old hydroelectric plant located by a dry river bed, where he could charge Pikachu up with electricity. After charging Pikachu up, Ash returned to the Gym, where Pikachu accidentally set off its sprinkler system, allowing it to win the rematch against Onix. Despite this, Ash decided to forfeit the match, feeling like he did not deserve to win. Nevertheless, Brock still chose to give him a Boulder Badge. The Gym was subsequently left under Flint's care while Brock decided to join Ash on his travels.
Pewter City made an appearance in File 1: Red. While visiting the Museum of Science, Red overheard two girls talking about Brock, the local Gym Leader. When he went to the Gym, he found out that Brock was the same man whom he had encountered earlier, just after losing a battle against Blue.
Red then started a Gym battle with Brock, during which the Rock-type Gym Leader gave the beginner Trainer basic advices of strategy, such as those involving type effectiveness. During the battle, Red came to realize that he and his Pokémon were in the battle together, making them his partners. Eventually, Red was able to defeat Brock, earning the Boulder Badge and TM34 (Bide). Afterwards, the young Trainer departed Pewter City, doubly determined to fulfill his quest of completing the Pokédex.
Pewter City is first visited in Wanted: Pikachu! and Onix Is On! in the Red, Green & Blue chapter. The citizens are business people that have tents in the streets where they sell principally fruits and vegetables which a roaming Pikachu tried to steal. After Red caught it, the citizens of the city gave Red a big feast. They also enjoy watching the battles of the Trainers who challenge the Pewter Gym. The city has a Pokémon Center, but during this time, it is closed due to vandalism, later revealed to be caused by the "bad" Gym Leaders in an effort to make Brock give up his Gym Badge for their plans.
Goldenrod City and Rustboro City are very similar to Pewter City. Their geographic locations in their respective regions are remarkably similar, as well as being only accessible through a forest early in the game. Rustboro is, however, the most like Pewter in that both cities are the second city visited with a Gym, but first to be beat by the player. Both Pewter and Rustboro's Gyms specialize in Rock-typePokémon, and play a role in the player obtaining Fossil Pokémon.
In Pokémon Yellow, if Pikachu is asleep because of Jigglypuff's song, the player will be unable to use the Link Cable features. In this case, the Link Cable attendant simply says her original preparation message: "Welcome to the Cable Club! We're making preparations. Please wait."