You are in the eye delivery service. Use the help of little creatures to catch, swing, and throw the eye around each level until it reaches the shipping portal. Be careful though, if the eye gets hit 4 times it will be too damaged for delivery.
Fight off the Creeper that is set to wipe everything from existence. Start with your base on the surface and excavate into the ground to take the Creeper head on. Eliminate this deadly enemy before it floods the world.