: This should take you back to the item management/menu screen in two-player mode, with the keyboard controlling one character and the controller the other.
Have the second player press the Start (or Options/Menu) button on their controller. : This should take you back to the
Resident Evil 5 for PC historically lacked local co-op, recent official updates and third-party tools now make split-screen possible Playing with a Keyboard/Mouse for Player 1 and a Controller : This should take you back to the