Halzyn is a creature native to SR388 that flies with vigorous wing flaps. The hard shell located on each side of its body keeps it safe from Samus' attacks. A Halzyn flies slowly from side to side in a wave-like motion, but can slightly increase the speed of its movement pattern when it detects Samus to heighten its chance of colliding with her. Halzyns can only be harmed if they are shot directly from above or below with beams and missiles, thus hitting the main body that their shells do not protect.