Lemon is a Slime Cat, and type of stomach parasite that has acid proof slime on the surface of their whole body. A long time ago, Slime Cats began to stop using their own stomachs because they became parasites, but after a while they lost their own stomach to evolution and are now required to eat half digested food from inside a human host’s stomach to survive. Lemon is about the size of a marble. Lemon is one of the smallest Slime Cats because he was very recently born.