Let's go Deimon, go go! The nicknames Hiruma gives people are hilarious! But the Ha-Ha Brothers are right, that pose is irritating! By the way does Suzuna wear her rollerblades when she sleeps? She should wear a helmet too.
It makes sense that Japanese would like American football once they likened it to a battle. It's the same as an army campaign and since all the positions are prescribed, this fits with Japanese culture.