User blog comment:Mckrongs/Monster Hunter 4 for the Nintendo 3DS/@comment-26074976-20130924231228/@comment-11537809-20130924232109

http://game.capcom.com/manual/MH4/ja/page-91.html Taken from MH4 Web Manual

It talks about the different controls for Insect staff (X+B for jump and then X to jump attack). It also gives info for Charge Axe