User blog comment:Plexioth- xD/Monster Hunter 3 Ultimate/@comment-138.86.163.163-20120326224032/@comment-58.169.108.90-20120326234138

It starts off like in Freedom Unite/Portable 3rd, in which new quests are unlocked every hunter rank (you rank up similar to offline, in that you do key quests, then complete an urgent quest to rank up). Once you beat Guran (the urgent for unlocking HR8), however, it switches to the console-style HR system (as in, you get HR points for each quest you complete). New content is then unlocked all the way up to HR100 (the last new monster, Lagiacrus Rare Species, is unlocked at HR70). The HR points you accumulated in all previous quests then go towards increasing your hunter rank, so it's not uncommon to go from HR7 to HR30-or-so directly after beating Guran.