Although the majority of WADs contain one or several custom levels mostly in the style of the original game, others implement new monsters and other resources, and heavily alter the gameplay ; several popular movies, television series, other video games and other brands from popular culture have been turned into Doom WADs by fans ( without authorization ), including Aliens, Star Wars, The X-Files, The Simpsons, South Park, Sailor Moon, Dragon Ball Z, Red Faction, The Thing, Pokémon and Batman.

Golem is the evolved form of Graveler, who is in turn the evolved form of Geodude, and they all first appeared in the 1996 game Pokémon Red and Blue.

Created by Ken Sugimori, Charmander first appeared in the video games Pokémon Red and Blue and subsequent sequels, later appearing in various merchandise, spinoff titles and animated and printed adaptations of the franchise.

Charmander is a starter Pokémon the player can choose from at the beginning of Pokémon Red and Blue, and their remakes, Pokémon FireRed and LeafGreen.

Charmander was one of several different designs conceived by Game Freak's character development team and finalized by Ken Sugimori for the first generation of Pocket Monsters games Red and Green, which were localized outside of Japan as Pokémon Red and Blue.

Charmander is a starter Pokémon the player can choose from at the beginning of Pokémon Red and Blue, and their remakes, Pokémon FireRed and LeafGreen.

Charmander and the other starters from Red and Blue are replaced by Pikachu in Pokémon Yellow, the only starter available in it.

In Pokémon HeartGold and SoulSilver, as a reward from Professor Oak after defeating the final boss, Red, the player can choose from Bulbasaur, Charmander, and Squirtle.

* In Pokémon Red and Blue and its remakes, Pokémon FireRed and LeafGreen, there's a Scientist at Silph Co. in Saffron City during the Team Rocket takeover of the building that refers to a supposed branch of the company in the Russian city of Tiksi.

Created by Ken Sugimori, it first appeared in the video games Pokémon Red and Blue and their sequels, and later appeared in various merchandise, spinoff titles, as well as animation adaptations of the franchise.

The player first learns of Mewtwo late in Pokémon Red and Blue by reading research documents left in a ruined laboratory on Cinnabar Island.

Japanese video game designer Ken Sugimori designed Mewtwo for the first generation of Pocket Monsters games, Red and Green, known outside of Japan as Pokémon Red and Blue.

In Pokémon Red and Blue, the player learns of Mewtwo's existence by reading research notes left in the ruined " Pokémon Mansion " on Cinnabar Island.

In the games, Mewtwo is consistently noted as being one of the strongest opponents, and has been described in Pokémon Red and Blue as being " the best Pokémon in the game ", as well as " one of the rarest — and hardest to catch ".

Created by Ken Sugimori, Venusaur first appeared in the video games Pokémon Red and Blue and subsequent sequels, later appearing in various merchandise, spinoff titles and animated and printed adaptations of the franchise.

These include Pocket Monsters: Blue ( Japan only ), Pokémon Yellow, Pokémon Crystal, Pokémon Emerald, and Pokémon Platinum.

In the Pokémon Adventures manga, Blue receives a Charmander from his grandfather Professor Oak.

In the Pokémon Adventures manga, Blue receives a Charmander from his grandfather Professor Oak.

Blue tried using it against Mew but failed and withdrew his Pokémon.

Also in 1999, it was speculated by analysts that Pokémon species, in particular Charmander and others, would become sought-after toys.

The player is later given an opportunity to capture Mewtwo in the Cerulean Cave, which is accessible only after defeating the game's final bosses, the Elite Four and Blue ; in the remake titles Pokémon FireRed and LeafGreen this prerequisite was expanded, requiring the player to explore more thoroughly and record information on sixty Pokémon species before access to the cave would be granted.

Analysts predicted that Squirtle, along with Pikachu, Bulbasaur, and Charmander, would lead the merchandising of the Pokémon series.

They added that if a person were to go around and ask Pokémon players who their favourite Pokémon was, they would " almost always " choose Pikachu.

IGN's Mark Bozon wrote that while Rattata seemed like an easy Pokémon to catch in Pokémon Ranger, it utilizes high speeds and maneuverability to make it more difficult than one would expect.

Pokémon cards would accomplish the same feat for a few years starting in 1999.

When the player battled the trainer, the Pokémon used in battle would not gain Exp.

When the Game Boy was released, Tajiri thought the system was perfect for his idea, especially because of the link cable which he envisioned would allow players to trade Pokémon with each other.

Upon hearing of the Pokémon concept, Miyamoto suggested creating multiple cartridges with different Pokémon in each, noting it would assist the trading aspect.

In addition, during this process, Nintendo trademarked the 151 Pokémon names in order to ensure they would be unique to the franchise.

Morimoto programmed Mew into the game secretly, as a prank amongst the staff just prior to its release in Japan, intending it to be a Pokémon only Game Freak staff members would know about and be able to obtain.

Game director Junichi Masuda stated the new titles would be developed around the idea of simplicity, as the game engine was a slightly modified version of the one used in Pokémon Ruby and Sapphire.

When a Baby Pokémon evolves into what would normally be a Basic Pokémon, that Basic Pokémon counts as being an Evolved Pokémon for the purposes of cards that affect Basic Pokémon and Evolved cards differently.

They initially were all themed on Pokémon Gyms and would benefit the Gym Leader.

For example, a Pokémon that would normally be a fighting type may be a fire type in the delta species.

In September 1999, Nintendo of America announced that they would be releasing an English version in North America with the proposed title of simply Pokémon Card.

Author Mark Jacobson found the transition from Charmander to Charizard to be odd, questioning how a " baby " Pokémon can grow into a " two-hundred-pound monster whose breath can melt boulders.

During an interview, Pokémon Company president Tsunekazu Ishihara stated that Mewtwo was expected to be popular with North American audiences, citing their preference for strong, powerful characters.

In the original games, Mewtwo is intended to be " the strongest Pokémon ever ".

Other games, such as Super Smash Bros. Melee and the Pokémon Mystery Dungeon series have featured Mewtwo as an unlockable player character that must be defeated before it may be used, while games such as Pokémon Snap have featured the character in cameos, appearing once certain conditions have been met.

Mewtwo is featured in the 1999 animated film Pokémon: The First Movie as the main antagonist, in which it is shown to be the creation of the criminal organization Team Rocket.

Because of the DNA that they share, the two are unable to be separated for very long without becoming ill. Later, another Pokémon, Entei is able to break the bond between the two by removing the DNA in Blaine's arm, at which point Mewtwo leaves.

The book Pikachu's Global Adventure: The Rise and Fall of Pokémon noted Mewtwo as popular with older male children who tend to be drawn to " tough or scary " characters ; Mew in contrast was described as a polar opposite, a character popular with young girls who tend to be drawn to " cute " characters.

Blastoise also appears in Super Smash Bros. Melee as both a Pokémon that can be summoned from the Poké Ball item to use against opponents and a collectible trophy.

The Trainer also has a Ivysaur and a Charizard, all three of which can be switched between ; unlike the other fighters, these Pokémon become fatigued and consequently weaker, and must be switched out long enough to recover.

; this Squirtle actually happens to be a young boy, transformed and sent to a world completely inhabited by Pokémon.

GamesRadar editor Brett Elston noted that while Charizard and Bulbasaur get “ big props ” from Pokémon players, Squirtle appears to be more popular from people who are not fans of the series, suggesting that its appearance may be a part of it.

Chansey first appears in Pokémon Red and Blue, where it can be found in the Safari Zone, and is considered a rare Pokémon.

In English, it may be observed as a pronunciation aid in loanwords ( e. g., résumé from French ) or romanizations ( e. g., Pokémon from Japanese ).

Initially both Pikachu and the Pokémon Clefairy were chosen to be lead characters for the franchise merchandising, with the latter as the primary mascot to make the early comic book series more " engaging ".

At first, Pikachu largely ignores Ash's requests, shocking him frequently and refusing to be confined to the conventional method of Pokémon transportation, a Poké Ball.