I love this game not only for the different endings but also because it has a message. It displays a mirror of humanity about how our choices and experiences change both our lives and decision making. And about how at the beginning of our lives we make decisions based on our own safety and after we make them we worry if they were the right things to do and begin to develop a sense of right and wrong. The creature in this game stands for us.
Well I was paying attention to the best so far and the number of missions went up when I unlocked a new level such as having 2 as my best so far after completing level 1.