| Clue | Pokémon |
| This legendary Pokémon can be captured with only three Gym Badges. | |
| This Pokémon is described by the following Red/Blue Pokédex entry: 'A bird that makes up for its poor flying with its fast foot speed. Leaves giant footprints.' | |
| This Pokémon can be traded for Tangela at Cinnabar Island in Pokémon Red/Blue | |
| This male-only species is displayed as genderless in battles because of its unique name. If nicknamed, its gender will be displayed normally. | |
| This Pokémon was going to be named 'La', representing the pollution around Los Angeles. Its pre-evolution was going to be named 'Ny' (New York City). | |
| In Pokémon Red and Blue, this Pokémon was the only one that couldn't even be seen without trading. | |
| This Pokémon is the smallest Eeveelution in both height and weight. | |
| Giovanni may have the shiny version of this Pokémon, judging by the pink color of its insides of its ears. | |
| This Pokémon is the largest Eeveelution in both height and weight. | |
| This Pokémon is referred to by the following Pokédex entry: 'It flies over its wide territory in search of prey, downing it with its highly developed claws.' | |
| This Pokémon is one of the two Pokémon to be necessary for another Pokémon's evolution in the anime. | |
| This Pokémon is the most commonly used Pokémon by in-game trainers. | |
| This Pokémon was originally only capturable by trading, but in Diamond, Pearl, and Platinum it can be captured using the dual-slot method. | |
| This Pokémon is the first Pokémon in the National Dex to start with the letter L, is known as 'Excelangue' in French, and is arguably the most forgotten of the Gen I Pokémon. | |
| This is the only Pokémon as of HeartGold and SoulSilver to have a scientific name. | |
| This Pokémon's original name was 'Flame'. | |
| This Pokémon is not legendary, Fire-type, and has a weakness to Electric-type attacks. | |
| Because Pokémon names are limited to ten characters, this Pokémon ends with a single L (instead of two, as planned). | |
| This Pokémon is Grass/Poison type, has evolved once, can evolve again, and does not require an evolution stone to evolve. | |
| This Pokémon contains 'OKI' somewhere in its name. | |
| This Pokémon is the fastest Water-type Pokémon. | |
| Its German, French, and Korean names are Entoron, Akwakwak, and Goldeok, respectively. | |
| Ash Ketchum has captured more of this Pokémon species than any other Pokémon. | |
| This Pokémon is the first Poison-type in the National Dex | |
| Many computers would spell-check this Pokémon's name, then suggest it be changed to 'Nonchalant'. | |
| This is the first Pokémon in the National Dex to have a non-alphabetical character in its name. | |
| This Pokémon is a female-only species, and only shares its type combination with its male counterpart. | |
| This Pokémon is the largest Pokémon that can legally hatch from an Egg. | |
| This Pokémon has 'WG' somewhere in its name. | |
| This Pokémon is the lightest that may have been inspired by Whac-a-Mole's artificial moles. | |
| This Pokémon may be considered a counterpart to Electabuzz (because of how evolutions are triggered and also because of their closeness in the Pokédex). | |
| This is the starter Pokémon in Pokémon Rumble. | |
| This Pokémon contains 'INB' in its name. | |
| This Pokémon's catch rate was changed. (once 90, now 127) | |
| This Pokémon has a number in the National Dex equal to the square root of the number of Kadabra in the National Dex. | |
| This Pokémon is famous for its explosions. | |
| This is the first Pokémon in the National Dex to share a species name with Infernape. | |
| This Pokémon is man-made, and loses weight upon evolving. | |
| This Pokémon is known as the Poison Pin Pokémon, and ends with the letter O. | |
| This Pokémon has the highest Special Attack of all Grass-types. | |
| This is the first Ground-type Pokémon in the National Dex. | |
| This remains the only Rock/Flying type Pokémon in any game so far. | |
| This Pokémon was originally the first Pokémon in alphabetical order. | |
| This Pokémon is the first Pokémon to appear in an unusual color in the anime (e.g. shiny). | |
| This Pokémon, when translated to Japanese, shares its name with a famous mathematician. | |
| This Pokémon evolves when it levels up while it knows AncientPower. | |
| This legendary Pokémon appears in four different locations (in the video game series). | |
| This Pokemon is the first in National Dex order to evolve by trading with a held item. | |
| This Pokémon was named after a Mongol leader. | |
| If this Pokémon kept its prototype name, it would be the only Pokémon to share its name with a move. | |
| Other than Diglett, this Pokémon is the only one that can be captured in Diglett's Cave. | |