To truly unlock the "Extra Quality" experience, tweak these Dolphin settings alongside your texture pack:
book series and original game manuals to ensure the new HD assets match the "canon" art style exactly. Controller Versatility monster hunter tri hd texture pack extra quality
The "TRI HD" Project is a complete High-Quality HUD ... - GitHub To truly unlock the "Extra Quality" experience, tweak
Place the extracted folder in your Dolphin directory: Load/Textures/RMHP08 . monster hunter tri hd texture pack extra quality
Verdict
Look for the most recent community-verified HD texture pack (often found on forums like GBAtemp or dedicated MH modding Discords).