Pokémon Red and Blue

Pokémon Red Version and Pokémon Blue Version, originally released in Japan as Pocket Monsters: Red & Green, are role-playing video games developed by Game Freak and published by Nintendo for the Game Boy. The games detail a young boy's journey across an island, as he captures different kinds of monsters and uses them to help a scientist write an electronic encyclopedia and travel from town to town fighting the leaders of the local gymnasium to qualify for the regional monster fighting championship to go up against the reigning champion.

Prof. Oak

 * Hello there! Welcome to the world of Pokémon! My name is Oak! People call me the Pokémon Prof! This world is inhabited by creatures called Pokémon! For some people, Pokémon are pets. Other use them for fights. Myself… I study Pokémon as a profession.
 * I'm disappointed! I came when I heard you beat the Elite Four! But, when I got here, you had already lost! […] Do you understand why you lost? You have forgotten to treat your Pokémon with trust and love! Without them, you will never become a champ again!

Rival

 * I am the Pokémon League Champion! […] Do you know what that means? I'll tell you! I am the most powerful trainer in the world!