One difficulty is the strength of the monsters. They have high health and powerful attacks. For example, a Level 5 Rathalos can deal massive damage with its fire - based attacks.
The environmental factors in these quests can be tough. In some Level 5 quests, you might be in a very hostile area like a volcanic region where the heat can damage you over time and there are many obstacles. Also, the navigation can be tricky. You need to find your way around while also being on the lookout for the target monster. And sometimes, other smaller monsters in the area can also cause distractions and additional challenges.
Another difficulty lies in the requirements for success. It's not just about defeating the monster. You may need to complete certain sub - tasks during the quest, like protecting a certain NPC or collecting a specific number of items. And your equipment has to be top - notch. If you don't have the right gear upgraded, you'll struggle a great deal against the powerful foes in these Level 5 quests.