Kilwala is an enemy in Chrono Trigger. First appearing in the Mystic Mountains during Prehistory, NPC Kilwalas also appear in the Denadoro Mountains in the Middle Ages and Porre's Snail Stop in the Present. The one atop Denadoro Mountains rewards the player with a Magic Capsule, if they scratch its back four times successively. Spekkio's second form is a Kilwala.
In the DS version, the one atop Denadoro Mountains will only talk instead of you scratching its back. It'll first say: "Mountains're so nice." Then: "This's such a nice view." Then back to what it first said. Finally he'll say: "You really aren't gonna leave me alone, huh? Here, take this." and give you the Magic Capsule. If you talk to it after, all it'll say is "Mountains're so nice."
Also when checking a bush in guardia forest in the middle ages a Kilwala will jump out and flee leaving a shelter behind.