This document provides instructions for setting up a DIY mobile VR experience using Unity and the Google Cardboard SDK. The key steps are: 1. Download Unity 5 and the Google Cardboard SDK for Unity. Get an Android phone, Cardboard viewer, and Bluetooth controller. 2. Import a first person character controller asset. Add the Cardboard SDK to Unity. Create a test scene. 3. Build the Cardboard controller by adding prefabs for the character controller and Cardboard SDK, removing the main camera, and adjusting scripts. 4. Connect a PS4 controller via Bluetooth and remap the buttons. Build and deploy the Unity project to an Android device.