Overview
This guide will teach you a simple way to play split-screen co-op with 1 Xbox Controller and a Keyboard/Mouse Offline in Portal 2.
Tutorial
Step 1: Open Portal 2.
Step 2: Click on “Options”.
Step 3: Click on “Keyboard and Mouse”.
Step 4: Enable Developer Console.
Steo 5: Push ” ~ ” on your keyboard.
Step 6: Type or copy this into it: joy_remap_player_for_controller1 2
Step 7: Submit and close the console.
Step 8: Click on “Play Co-operative Game”.
Step 9: Click the “X” Button on the Xbox 360 Controller.
Step 10: Enjoy the game!