Each Pokémon to understand
The power that's inside
Whenever a Pokémon is first captured, its height, weight, species type, and a short description will be added to a player’s Pokédex. Each region has its own Pokédex, which differ in looks, as well as the species of Pokémon catalogued
A good video example of what a Pokédex does.
To help improve the meaning of these lyrics, visit "Pokémon Theme Song" by Ash Ketchum and leave a comment on the lyrics box