251 Pokémon: that is the goal, and a diploma awaits when you reach it. But no single version lets you get everything on its own. This guide gives you the complete method, category by category, and the exact list of what will be missing in your version.
Completing the Pokédex in Gold, Silver or Crystal means combining five sources: catching in your version, evolutions, the Day-Care, trades with other versions and, for a few Kanto Pokémon, the Time Capsule to Red, Blue or Yellow.
We start with the list of what you cannot get directly in your version, then go through each method for filling the gaps.
