Circring Q9 (サークリングQ9 Sākuringu Q9) is the boss of the second Wily Castle stage in Mega Man 5. It is a large robot that throws orbs from its top and shoots from the mouth. It has two ways of moving--a wavy sideways motion, and an inverted v-shaped ascending/descending motion. It is vulnerable only when its side flaps are open. It is vulnerable to Gyro Attack.

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