Every Cookie belongs to one out of eight types (also colloquially referred to as classes or roles) that determines their function in battle, whether it be damage-dealing, buffing/debuffing, or healing. They also determine the kind of Skill Powder Cookies require to level up their skills, as well as whether particular Cookies receive benefits from certain Cookie Technologies from the Sugar Gnome Laboratory, or gallery bonuses from the Guild Museum. Many trays in the Tower of Sweet Chaos also limit the number of Cookies of certain Cookie Types that can be used in a team.