The Official Monster Hunter 3 Ultimate Topic

To my knowledge Amatsu is not in 3U. Amatsu is the P3rd exclusive final boss. 3U gets Guran-Mirasou or whatever its name is.

Oh no, I meant that Amatsu wasn't in this game. I didn't know if I wanted to spoil monsters newbies haven't seen, so I went with a vid of one they'd probably never fight.