Your goal is to make a working Ecosystem and sustain it for as long as possible. Predators and Prey will evolve over time which is where the Shapeshift aspect is. Predators need to eat prey to survive, so make sure you put a lot of prey in before you place predators. Prey have a small chance of being able to reproduce, so you may have to restart a couple of times, breeding may get out of hand, so if the game starts to lag, put some predators in.

Made in Java with no external libraries