I hadn't realized there was co-op
Today was a particularly busy day in what's been an all-around busy week. Did you happen to read Dale's review of Resogun? I think it's a safe bet to call this the go-to PlayStation 4 launch game -- just look at it! And the fact that it's free for PS Plus members is beyond words.
Before the game and console release, Housemarque has another video of the shoot-'em-up which goes into the various worlds and playable ships. (One of them is called "Phobos," a word I definitely did not learn from Doom. Nope.) The PlayStation Blog has a more detailed breakdown of the ships' strengths and weaknesses but I got too distracted by those particles going every which way. This looks like eye-melting fun. Be sure to bring a friend along.
Resogun Co-op Detailed, More Ships Revealed [PlayStation Blog]