Sun: While grooming itself, it builds up fur inside its stomach. It sets the fur alight and spews fiery attacks, which change based on how it coughs.
Moon: It doesn’t allow its emotions to be easily seen. Earning its trust takes time. It prefers solitude.
Ultra-Sun: If you try too hard to get close to it, it won’t open up to you. Even if you do grow close, giving it too much affection is still a no-no.
Ultra-Moon: Its coat regrows twice a year. When the time comes, Litten sets its own body on fire and burns away the old fur.
Sword: It spends even the smallest amount of downtime grooming its fur with its tongue. Loose fur gathers in its stomach and serves as fuel for fiery moves.
Shield: Trying to pet Litten before it trusts you will result in a nasty scratch from its sharp claws. Be careful.