For every action, there is an equal and opposite reaction. Life's all about push and pull - a constant tug-of-war match between opposing forces.
There is, of course, no example more universal than that of the upper middle-class father who's secretly an octopus.
Octodad, a student-made entry in the 2011 Independent Games Festival, is - without a doubt - the best game about an octopus desperately attempting to blend in with human society that we've ever seen. In the game, you take the role of the titular paternal cephalopod monster as he goes through the motions of another mundane day.
But, you know, he's an octopus, so replace "mundane" with "bat shit insane." This translates into a control scheme that sees you manipulate each limb individually, leading to all sorts of hilariously awkward flailing and environmental destruction as you try to avoid having your dark secret exposed to your family and neighbors.
Also, it's completely, no-strings-or-suction-cups-attached free. Enough from us, though. Our words can't do this wriggly masterpiece justice. So here's a trailer: