In this chapter, I will cover the game environment. I start off by covering the creation of sound on Android. I cover our custom Sound class and then modifications we will need to make to other class objects to integrate sounds into them. I then go through a hands-on example in which we play explosion sounds when two cubes collide with each other. I then cover how to create a heads-up display, or HUD. The new classes needed to implement the HUD are covered, followed by a case study in which a heads-up display is created for a game. Next, I cover saving and loading data and show how you can add code into your classes to save and load class data. Finally, I discuss a hands-on example in which we modify our case study to preserve the HUD item data and the orientation and physics state of the two cubes that are colliding with each other.