played the demo, took about 10 minutes to get the hang of the game but I got over the initial confusion of exactly what I was doing I was hooked, so ended up buying the full version.
Got to the end of the 1st act (out of 3), theres actually these weird cutscenes and story and stuff, its kinda forced... script and characters are ludicrous so its pretty funny.
Game is sweet, 2 stick shooter with 1st person shooter multiplayer style territorial gameplay, works really well, A pretty unique blend of genres. Graphics are pretty good for a 49MB game, some nice textures and effects (depth charges look quite nice)
But yeah everyone get this, co-op and versus will rule