Based on the tutorial Create with Code | Prototype 2 - Feed the Animals, this variation includes the following modifications: * alternate grass texture * projectiles may be launched with space bar or primary mouse click and start higher than chickens but fall with gravity * If a chicken runs out of bounds it does not end the game * Movement via horizontal axis and mouse x axis. * UI elements for keeping track of quantity of animals fed, a countdown timer, and total score. * Game ends if you run out of time or if an animal other than chickens runs out of bounds.