These are extensively modified versions of the original Pokmon HeartGold and SoulSilver games. They feature significant increases in difficulty, a complete rebalancing of Pokmon availability, and numerous quality-of-life improvements. For example, trainers encounter vastly stronger opponents throughout the game, demanding strategic team building and skillful battling.
The value lies in their revitalized gameplay experience for veteran Pokmon players seeking a greater challenge. They offer a fresh perspective on familiar regions, forcing adaptation and rewarding in-depth knowledge of Pokmon mechanics. These enhancements provide a compelling alternative to the standard Pokmon journey, renewing interest in classic titles. Their enduring popularity is a testament to the demand for more challenging and customizable Pokmon experiences.