I honestly think those are just manga/anime sillyness. If you notice all the times it has a life of its own it's chibi or during a joke scene or something.
Thing I'm wondering about is how intimate the whole Kururu thing with Ikki is getting, I mean he still calls her by last-name only and not her first name (which I think they're going to save for some major battle/event) and she tried to snuggle up to him in that makeshift sleepingbag. Interesting turn of events I wonder how it's going to unfold. The only one on their team that seems to be any good at AT would be the old guy that seems to be advising Kururu's dad and possibly the masked big-breasted secretary.
Back from ban-hood, I blame explosm webcomics