About Tennis is War GameTennis is War is a simple single-player cartoon tennis game against the computer. Press the left and right arrow keys to change which column you are standing in to return the ball, using the X icon as an indicator for the ball's path. Each shot you return is worth a point. After returning around 5 shots you activate a power shot feature. Set your aim on power shots by tapping the spacebar, an arrow button, or another key. Avoid touching any bombs your opponent throws. Collect coins and use them to unlock other balls in the shop. Unlockable balls include a beach ball, a tomato, a cheeseburger, and a rubber ducky. This is a JavaScript web application which uses cross-platform mobile-friendly HTML. All modern web browsers like Microsoft Edge, Apple Safari, Google Chrome, Mozilla Firefox and Opera should support it. This game works on just about any type of computing device including Microsoft Windows desktop computers, Apple OSX Mac computers, iOS powered tablets and phones like the iPad and iPhone, laptops like the Google Chromebook, and the many types of mobile phones from manufacturers like Samsung which are powered by Google Android.