I fed the slug for a while and it got extra happy at one point and then went back to normal. I will play again if you can tell me there's anything else.
When the slug gets extra happy, the slug won't starve until it's no longer extra happy. After the slug no longer gets extra happy, the slug will be normally happy and begin starving. Use the extra happy strategy to score more. But you need to get lucky to get the slug feel extra happy.
