Here's why:
* Focus on Exploration: Explorers of Darkness, Time, and Sky emphasize exploration and puzzles. Instead of relying on HMs to break down barriers, the games introduce various environmental features, like hidden pathways and specific items needed to progress.
* Move Variety: With the removal of HMs, the game's move pool becomes more diverse. Pokemon can learn a wider range of moves through leveling and tutoring, encouraging players to experiment with different strategies.
* More Realistic Gameplay: The removal of HMs makes the game feel more realistic. In the main Pokemon series, HMs are often used to unlock areas, but they don't make sense in the context of the Mystery Dungeon world where Pokemon are the protagonists.
Instead of HMs, the Explorers games introduce the following mechanics:
* "Skill" Moves: Some moves, like Strength and Cut, are learned as "Skills." These moves are tied to specific items that the player finds in the dungeon.
* Environmental Interaction: The game utilizes various environmental elements, like levers, switches, and specific objects, to solve puzzles and unlock new paths.
So, while the absence of HMs might seem like a change at first, it actually contributes to the game's unique style and gameplay. It encourages players to use their wits, explore creatively, and strategize effectively, making the overall experience more engaging and satisfying.