For another, this video works really well as an introduction to the various moves available in game: the different charge shots (Isa's, which sets off one massive explosion, and Kachi's, which can target multiple enemies), the dodge move, the melee attack. If you've been playing the game, you know this stuff, but if you have yet to experience it, this video will give you a pretty decent idea of how it works -- with a lot of boss fight footage as a nice bonus.
