Those who own the cube-loving title Portal 2 for PC on Steam will be pleased to know that Valve has pushed through an update today that adds two player local co-op. The new update also brings two other fixes that include fixing a ping issue with controllers and not being able to exit the Robot Enrichment or Create Test Chambers menus with a controller.
Big Picture Support
Added 2 controller splitscreen support for Standard Co-Op. Press X on the second controller inside the first Co-op menu to activate it.
Fixed controller's ‘quick ping’ button causing the player’s movement to stop.
Fixed not being able to exit Robot Enrichment or Create Test Chambers menus with the controller.
The new local co-op is only available in Big Picture mode, Steam's new TV compatible UI. Time to start thinking with two brains instead of one.