Cyndaquil, Known as the Fire Mouse Pokémon, is the Fire-type Starter Pokémon in Pokémon Gold, Silver, and Crystal, and its remakes Pokémon HeartGold and SoulSilver. Its fur is bluish on top of its body, but a milky color on the underside. Although called the Fire Mouse Pokémon, Cyndaquil seems to be a composite of features from an echidna and a hedgehog, seen in the flames erupting from its back, and the shrew, a rat and a mouse, the general shape of its body. Its eyes are often closed, as it is still young. It has four red spots on its back from which its flames erupt. Cyndaquil is usually timid, but is capable of defending itself by using the fire on its back.

Meganium, Known as the Herb Pokémon, is the final form of the Chikorita evolutionary line. Meganium is a sauropod-like Pokémon. Instead of having a leaf coming out of its head, like its two previous evolutions, Chikorita and Bayleef, it has stamen-like antennae sprouting from the top of its nose, each with what looks like its own anther. The leaves around its neck seem to have sprouted into a large pink flower with white tips. Meganium has also reverted to the color it was as a Chikorita, whilst Bayleef's main body color had become a beige-color. A female Meganium has shorter antennae. The aroma emanating from Meganium's petals soothes anyone that comes in contact with it. It calms aggressive feelings.

Bayleef  Is the evolution of Chikorita and first appeared in Pokémon Gold and Silver. It has a pale yellow body supported by four legs and a rather long neck and tail. On top of its head is a single large leaf. Its most defining trait is the "necklace" of seven tubular leaves that is located around its neck. Each of these curled up leaves contains inside it a tree shoot. From these leaves wafts a spicy scent that has stimulating properties. It can cheer people up, restore their health, make them more energetic and even heighten their drive for competition. During the series ash catches this Pokémon

Chikorita (チコリータ Chikorīta?), Known as the "leaf" Pokémon, is a small green reptilian Pokémon. It is primarily a pale leaf green color with large red eyes. Its most distinguishing feature is the large leaf on the top of its head, which is usually longer than the rest of its body. It has a "necklace" of small green buds around its neck. Chikorita can spawn vines from its neck and create leaves from the big leaf on its head. Like many Grass-type Pokémon, its foliage emits a sweet odor that has calming properties. This leaf also has the ability to check the temperature and humidity of the surrounding air. Chikorita, like many grass Pokémon, are very docile.

Like Mewtwo, Mew Is a Psychic-type Pokémon with high stats. Morimoto designed it as a pink, feline-esque Pokémon with large eyes and a long, thin tail that broadens at the end. Its skin is covered with a layer of short, fine hair. Its DNA combines the genetic composition of all existing Pokémon species; the game states that scientists within the game view it as being the single ancestor of all other Pokémon. It is shy and rarely seen by humans. It is a legendary Pokémon  from the first generation, along with Articuno, Zapdos, Moltres, and Mewtwo. In Pokémon FireRed and LeafGreen, the player can find journal entries in the Pokémon Mansion on Cinnabar Island stating that Mew was discovered deep in the jungles of Guyana, South America, on July 5 (the year is not specified), and named on July 10, and that it "gave birth" to Mewtwo on February 6th The name mew is based on the onomatopoeia of a cat's cry, meow.

Mewtwo Is a large bipedal feline-esque Pokémon, with a lavender-colored body, pronounced purple tail and stomach, feline head, and a mass of flesh connecting the center of its back to its head behind its neck. Its appearance has been likened to "an oversized cross of cat, squirrel and kangaroo".  In the original games, Mewtwo is intended to be "the strongest Pokémon ever". It is psychic, uses telekinesis for flight  and telepathy to speak. When fighting, it uses its abilities to shield itself or throw opponents to compensate for its lack of speed. Otherwise, it conserves its energy until needed. It can regenerate as well, and is able to quickly recover from near-fatal injuries.

Dragonite, known as the Dragon Pokémon, is the final form of the Dratini evolutionary line. Dragonite's appearance is notably different from that of its previous forms: as Dragonite, it is now an orange bipedal dragon with a beige underbelly that extends from the top of its neck to the tip of its tail. Along with already being a Dragon-type, it has now gained the secondary Flying-type, growing wings. Dragonite are extremely fast, able to circle around the globe in sixteen hours.It has a small horn on the top of its head, along with slightly "S" shaped antennae. Much like its previous forms, Dragonite still has a gentle and somewhat innocent appearance and a kindhearted disposition. They have been said to save people from drowning and lead ships that have been trapped in storms to safety. People have claimed that there is an island somewhere that only Dragonite inhabit.  Its diet consists mainly of berries , soft plants, and fruit, while it will occasionally eat crustaceans. Dragonite are said to have an intelligence matching humans.