If you have ever played baseball at any level, you probably had a pre-at-bat routine that you did each at bat to get yourself comfortable. Personally I would take three half swings and then grip the bat as hard as I could before relaxing my grip to wait for the next pitch.
This Japanese high schooler takes the pre-at-bat routine to a whole new level. The things he does during one at bat is only comparable to something that you would see in a movie. If I was the pitcher I would have a hard time not throwing a little bit of sweet chin music if you know what I mean.