>>15932572He wasn't present at all in Gold/Silver; Game Freak added him in Crystal. HeartGold/SoulSilver took many of Crystal's changes and/or additions into account so yeah.
For example, if you compare the maps of cities between Gold/Silver, Crystal, and HeartGold/SoulSilver, you'll easily notice how HeartGold/SoulSilver are based on the Crystal renditions instead of the Gold/Silver renditions.
