All Pokemon Belonging to Generation 4

Appropriately enough, considering the term’s relevance to the franchise, Pokemon has considerably evolved throughout the years. During the series’ early days, also known as the “Pokemania” for the late 90s and early 2000s, the games, anime, and marketing promoted the idea of "catching 'em all." They would seldom fail to specify that there were 150 Pokemon to catch. Of course, by 1999, most Western Pokemon fans were aware that there were at least 156 creatures, due to Mew’s existence and the early appearances of Togepi, Ho-Oh, Snubbull, Donphan, and Marill.

All Pokemon Belonging to Generation 4
Source: Pinay Diaries PH