Let’s just put the argument as to whether or not flOw is actually a game aside and agree on one thing: It’s damned mesmerizing.
And now it continues, as an expansion pack for the PlayStation Network title is on its way. As demonstrated by this developer walkthrough, the expansion pack adds a number of new playable creatures (the “Puffer” for instances), as well as new enemies. Also new is the ability to play mix and match multiplayer in the game’s campaign (hold on — there’s a “campaign”?); each player can choose to control and evolve a different creature this time around.
So let’s get back to the question: Is flOw a game? I think the answer is quite clear now — of course it is! It has its own expansion pack!