For over a decade, the holy grail of Pokémon ROM hacking has worn two names: Sacred Gold and Storm Silver . Created by the legendary Drayano (with later updates by the community), these hacks of Pokémon HeartGold and SoulSilver are not mere difficulty bumps. They are comprehensive redesigns that transform Johto and Kanto into a hardcore trainer’s paradise.

Pokémon Sacred Gold Storm Silver (SG/SS) are extensive enhancement hacks of HeartGold and SoulSilver created by Drayano. The official documentation is typically divided into several PDF/text files covering specific gameplay changes. 📊 Core Gameplay Changes

Here is the documentation for (by Drayano), two highly popular ROM hacks of Pokémon HeartGold & SoulSilver .