Metal Cyclone (メタルサイクロン metaru saikuron)is an enemy that only appears in the Stories of Legend.
The most annoying cyclone, requiring a lot of critical hits to defeat. It is the slowest cyclone, though in return its stage length is much shorter. Anti-metal cats obtained from the other cyclone stages(Clockwork Cat is optional though) are required to take down the Metal Cyclone, along with Crazed Whale Cat, Island Cat, and cheap meatshield cats. If you have them, Berserker Cat will be able to deal massive damage on it and Tesalan Pasalan (long arms Luga Cat) can annihilate this cyclone with one critical hit. Take a look at Anti-Metal Cats for a list of all the anti-metal units.