Ratchet and Clank: All 4 One Dev Explains the Importance of Couch Co-Op
As great as it is to have online co-op in a game, nothing beats good ol fashioned couch co-op. There's something visceral about the experience, the ability to turn to your buddy and high five them when you beat a boss, it just brings an additional high. So while online co-op may have ushered in a cooperative revolution, it's local co-op play that drove it there.