As an integral part of pre-production, Bill (director) and Bill (cinematographer) test a variety of weapons in order to figure out what time period in which they want "Raptor Quest" to take place. In this part they take a trip to an archery range.
I don't know why, but for some reason, Japanese have to yell when they're doing sports. It doesn't matter which sport it is, they'll always find a reason to yell.
Even with archery as you can see........