The 10 Rarest Pokemon Of The Original 150

Venusaur

Bulbasaur was probably the least popular of Kanto's three early Pokémon, but over time, he became the best of the three by a fairly large margin.

 Ninetales

I swear I didn't find Nintendo's 9th place cute or anything.

 Vaporeon

Water Pokemon have high defense and give good support to Pokemon (as we can see later in this list).

 Dragonite

Dragonite was always a badass Pokemon, but he wasn't very good.

Electabuzz

There are certain Pokémon from each generation that are usually locked in a specific game.

Gengar

As a third-stage ghost-type Pokémon, Gengar maintains a terrifying presence.

Porygon

According to Porygon's Pokémon Red and Blue Pokédex, "A Pokémon consisting entirely of programming code.

Machamp

According to Matchamp's Pokémon Yellow Pokédex entry, "One hand alone can move mountains.

Kangaskhan

Some Pokémon are more difficult to catch than others due to their low encounter and catch rates.

Aerodactyl

A skeleton of an Aerodactyl is found at the Puerto City Museum, but this Old Amber is the key item that brings you Pokémon.