User blog comment:Mckrongs/Monster Hunter 4 for the Nintendo 3DS/@comment-22748142-20131005225203/@comment-22748142-20131006135129

The new feature in MH4, the custom quest , you randomly generate a * rare quest * in Unknow sea of Tree which you can play 1 time as free hunt , or , you can send that quest as * Guild quest * to other players using streetpass function , and they will love you even more if you happen to have a rare monster quest. Of course you can receive these quest from other player.

Now you can play these quest without limit aka good for farming certain rare monster like Kirin, but every time you finish the quest , its level will be increase , and the same thing will happen to monster size , attack power and reward / credit receive.

A way to keep everyone from boredom.