So basically i just followed all steps from the Unity Essentials and as a bonus scene made all rooms into one house and added some flying UFO above just for fun. I made some scripts to make collectibles feel more satisfying (light, float, sound when collecting them, and victory boops at total collection). Played a bit with terrain at main menu. And as support tool for testing added R button as a 180 flip to the car to help me out with struggles.