Pillow strikes only — swing the pillow at opponent's head + body; Two-handed pillow grip permitted; Spinning pillow strikes legal
Why people argue about this
People often assume that since Pillow Fighting is a playful sport, all strikes are permissible in good humor. But the official rule clearly states that only pillow strikes aimed at head and body using a two-handed grip are allowed, with no spinning strikes or grappling permitted—this confusion arises because it seems too strict for such a light-hearted game.