Chunkies are a living, breathing creature that will be in need of caring for. As time passes and your Chunky continues to battle, it will begin to feel tired and hungry. It will be up to you to feed your Chunkies and make sure they are well taken care of and rested. If you feel fail to take care of your Chunky, your Chunky will begin to get unhealthy and begin to have its level and stats decrease. If this goes on long for too long your Chunky will eventually die and be reborn starting back at Level 1.