I am glad you liked the game. We tried to let the player discover the goal for the game since we were worried that if we told them directly, it would bias their behavior. But unfortunately, I think that we did not do as good a job explaining what was going on through gameplay for the player to learn the goal. Our hope was to make a game where as you ate more and more, you would become faster (and bigger but we did not end up getting to that feature), however, at the same time you would reduce the population of the bugs. If you were too greedy, you would remove all the bugs from the game and end up dying yourself (as the total population of the bugs goes down the music changes to be more somber to reflect that; we also wanted to do a visual change but alas, not enough time). I think if we reduced how much the bugs repopulated after each day, it would be easier to notice that the total amount was getting reduced over time. Some UI work could have also remedied this.
But anyway, thanks for your feedback, we had a ton of fun learning brand new skills.