Apparently devised by the winner of last year's GDC indie games competition, flOw offers no explanation to the player - not that the non-English speaking Sony rep manning the lone demo pod could either - but luckily that doesn't matter in the slightest thanks to its delightfully intuitive design. In simple terms, it plays a bit like Snake. You control what appears to be a cell-based life form, swimming around the inky blue looking for things to eat. As you come across strange-looking single-cell organisms, you line up your pincer like jaws and attempt to grow your form. As you weave your way around, the more you consume, the longer and more complex your segments become, and so it goes on