Mother is a large, sand-burrowing cat inhabiting the Desert of Giants, and will attack anyone who leaves the safety of the Library. When Valor brings her lost kittens back to her, she will no longer be aggressive and will retire to a nearby cave, and will also appear at the beginning of the Alibii Omega fight, assisting you by destroying one of the heads.
While the meows of the 5 kittens are recordings of the developer's cats, Mother's noises are not from a real cat.
Mother will gain a significant boost in speed when sprayed with link fluid.
If Mother inadvertently destroys one of the purple mushrooms found in the Desert of Giants, she will stop chasing you and hallucinate for a short period of time.