User blog comment:Kogath/Monster Hunter XX Discussion/@comment-26995086-20170405121639/@comment-27465049-20170405131137

Only G-rank, it's cleraly intentional seeing as how the movement really makes it just go straight forward.

To be honest, they could've just made the sweeping beam have an irregular arc, like as it sweeps, it goes forwards and backwards a bit, just to make it unpredictable. Having a single beam of water leaves a really huge opening.