When it's in trouble, it curls up into a ball, makes its fur spikes stand on end, and then discharges electricity indiscriminately.
Togedemaru
This is the only Pokemon to ever have acted as a gym leader
Long shot of this happening
Farfetched
This Generation introduced Hidden Abilities
Gen 5
Poison
Gunk Shot (120)
This Pokemon sticks together no matter what. They split any food they find exactly in half and then eat it together.
Tandemaus
Ash and May have both caught this Pokemon
Bulbasaur
Energetic and bright
Elekrik
This generation introduced the mechanic of friendship
Bug
Megahorn (120)
Motionless as if dead, its body is faintly warm to the touch. In the distant past, it was called the cocoon of the stars.
Cosmoem
Sabrina the gym leader becomes possessed by this Pokemon, causing her to shrink Ash and friends and keep them in a doll house
Abra (evolved into Kadabra mid-battle)
It's not the strangest thing you've ever seen, but it's this
Oddish
This generation introduced the largest number of new Pokemon
Gen 5 (156)
Steel
Steel Beam (140)
It clings to Mantine to feed on the big Pokémon's scraps. This is an adaptation to avoid foes.
Remorade
This region traveled to by Ash and companions is the only one not based on a video game.
The Orange Islands
An action that Gen Alphas are obsessed with doing
Mew
The most common Pokemon type is Water. However, only in this generation, it was second to Poison type
Gen 1
Grass
Frenzy Plant (150)
To this Pokémon, strong emotions apparently feel like incredibly loud noises—even if the emotions are happy ones.
Hattrem
There is a popular fan theory that these characters are actually the strongest trainers in the world. This fact is somewhat corroborated by the fact that one of them has caught and used a Latias in the anime.
Nurse Joy
A convent for nuns
Cloister
This Generation introduced the most legendary Pokemon, welcoming 11 to the franchise
Gen 7
Fire
V-Create (180)