In this clip, Japanese comedians (and a lady from Sony) help us through a walkthrough of the game. I guess for some this probably looks pretty strange! But in Japan, this sort of stuff is simply called "TV".
A good chunk of Japanese television follows this format, with comedians in silly costumes either doing things or explaining things. Loads of game companies use it at either press conferences or in videos like this. Better than boring, stiff walkthroughs, I say!
第1回 シューティングの掟 [YouTube]