Hawaii Counterclaim is a type of legal pleading filed by a defendant in a civil case who is contesting the claims of the plaintiff. It is a formal response to the plaintiff's complaint, and contains the defendant's allegations and evidence. It usually includes claims that either negate the plaintiff's allegations or provide a defense to them. There are three types of Hawaii Counterclaim: Compulsory Counterclaim, Permissive Counterclaim, and Cross-Claim. Compulsory Counterclaims are claims related to the same transaction or occurrence as the plaintiff's complaint and are required to be asserted in the answer or else they are waived. Permissive Counterclaims are claims unrelated to the plaintiff's complaint but which arise out of the same transaction or occurrence, and they must be asserted in the answer or else they are waived. Cross-Claims are claims between parties to the same action, and may be either compulsory or permissive.