HeartGold/SoulSilver Kanto and Pokedex Guide

It's $20. It's worth it I would say.

There are some errors though...

Treecko is listed as a Pokemon that can be caught in Treehouse in the Pokewalker.
In the Reverse Move Look-up Nightmare is missing and is listed as Bad Dreams.
Dusk Ball is listed as Dark Ball in some places.