After one week, you can not take more baby, but you must face more monster, so, even plums only have 1HP is still very despair, beacuse the premise of this matter(Low HP) being discussed is you can hurt it, if you can not touch plums, no matter what the number is, it doesn't make sense
"'ve just never encountered this problem" is not mean this problem is not existent, and i am not sure what you mean " block the enemies that block your shots", you mean kill that? Or use some baby like "Cube of Meat"? Whatever which is you choose, they all lead to you place more baby in a line and plums will easy to fly