User blog comment:Kogath/Monster Hunter 4 Ultimate for the Nintendo 3DS/@comment-17735225-20140515121520/@comment-184612-20140516063718

Surprised you guys aren't asking any of the actual MH4 players here (like myself) these questions.

For one, MH3U was easier than other previous games due to the natural 50 Defense you get. Seriously, take off all your armor and look at your status screen. Tri didn't have that.

The saved Unknown Forest quests are similar to Conquest quests from Frontier. They level up as you beat them and the monsters get harder and gain new attacks. At Level 100 they really are stronger than anything else in the game (save Fatalis and some event monsters like JUMP Teostra). They're almost like fighting G Rank monsters in FU when using unupgraded High Rank or even Low Rank gear. They WILL kill you in a few hits.

Fatalis is a whole 'nother story. I don't recommend anyone fight it unless they have over 600 Defense just so they don't get instant killed, but some things still will (like the explosive attack for example).