Action comes fairly easy in to the mind of the videogamer since it is all about timing. Much like tetris is action in the sense that you have to time it. This is much more advanced and less complete working from the frames of movies.
Camera is a core concept in action. You can either approch it with editing (e.g. Once Upon a Time in Mexico) or without (e.g. video games where the edit is impossible, or as we say in these circuits "Tarkovsky-ish", we are still waiting for this to be done great!). Devil May Cry was the first game to explore the camera issue that has been the biggest problem of videogaming since it's been compromising the artistic view. Say; if a director of a film doesn't have the money or people to make a big parade scene he can use objects to block the view so that 30 people look like 300, that cannot be done in videogames since you can "swoop" the camera yourself. Devil May Cry actually tries to capture the directors vision of action, Devil May Cry 2 does this aswell but since the new director only tries to mimic Hideki Kamiya the vision is not original.
However, this game is good. It's entertainment. It's that simple. It's premiss is simple it's execution is simple the controls and camera are responsive and does what they're told.
To comment on the plot would be to lower myself to a degree unworthy of a serious critic and is not of essence to the gameplay.
8/10 - Worthy of your time if you like videogames for videogames and not for interactive movies.