Based On Thiago Harry's Bulbapedia Bot - Work In Progress - Original URL: http://pastebin.com/1vANKnUf

harry_bulbapedia_bot.rb

require 'nokogiri'
require 'open-uri'

BULBAPEDIA_URL='http://bulbapedia.bulbagarden.net/wiki/List_of_Pok%C3%A9mon_by_National_Pok%C3%A9dex_number'

doc = Nokogiri::HTML(open(BULBAPEDIA_URL))

Pokemon = Struct.new(:name, :url, :img)


pokemons = doc.css("img[width='40']").map do |element|
  element.parent
end.map do |link|
  name = link['title']
  url = link['href']
  img = link.css('img').first['src']
  Pokemon.new(name, url, img)
end

puts pokemons