Imps, Pouches, and Secret Recipe reward list

Imps that are "hungry" or "sick" tend to "delevel", as in if your Imp was level 5 and it was hungry it would slowly go down in fullness and go back to level 4, level 3, level 2, etc until it dies. Closeness goes down too and you can't get it back because it's atrophied. You get closeness again once it levels up again.

This. Plus that if you give an atrophied Imp a Pounding Heart, it increases closeness as normal if you used all uses of the Pounding Heart.