* HMs are permanent: Unlike regular TMs, HMs are learned permanently by a Pokémon.
* HM Utility: HMs are designed for essential in-game functions like traversing obstacles (Cut, Strength) and accessing new areas (Surf, Waterfall). Removing them would hinder gameplay progress.
However, there are workarounds:
* Move Relearner: After beating the Elite Four, you gain access to the Move Relearner in Slateport City. This NPC can teach a Pokémon any move it has previously learned, including HMs. You can use this to replace an HM with a different move.
* Specific HM Moves: Some HM moves, like Cut and Flash, are relatively easy to learn again if needed. You can find Cut tutors in the following locations:
* Slateport City: Near the Pokémon Center.
* Ever Grande City: In the Pokémon Center.
* Sootopolis City: Near the Pokémon Center.
Important Note: While you can replace an HM with another move, the Pokémon will still retain the ability to use the HM in the field. You'll still be able to use Cut, Surf, etc., even if they've been replaced with other moves.