Mach Tornado

Mach Tornado is one of Meta Knight's trademark abilities, mainly in Kirby Super Star and its Nintendo DS remake, Kirby Super Star Ultra.

Super Smash Bros. series
In the Super Smash Bros. series, Mach Tornado is Meta Knight's standard special move in all of his playable appearances, the first being Super Smash Bros. Brawl. Upon using the move, Meta Knight spins around rapidly, creating a whirlwind around himself that traps opponents and deals damage to them, with the final hit dealing greater damage and knockback. The move lasts longer if the player continuously presses the button, which also gives the move some vertical height, and the player can also move while using the move; the vertical and horizontal distance this move receives are both greater in the air. When the move ends, Meta Knight enters a helpless state if he is in the air.

The custom variants for this move in Super Smash Bros. for Nintendo 3DS / Wii U are Entangling Tornado and Dreadful Tornado.

Entangling Tornado draws in opponents and deals a single hit with greater knockback, but it offers less horizontal control than Mach Tornado, as well as much less damage. In Super Smash Bros. Ultimate, Mach Tornado itself is reworked into a single-hitting attack. Thus, it deals higher knockback and travels quicker, but has a hampered damage output and no extra maneuverability, due to the loss of the ability to button mash.

Dreadful Tornado deals more powerful hits and offers much stronger knockback, but its duration cannot be extended by tapping the special move button. The move also has more ending lag than Mach Tornado, which leaves Meta Knight vulnerable to counterattacks.