Koopa Klaw
Koopa Klaw is one of Bowser's special moves in Super Smash Bros. Melee. Bowser uses this move when the B button is pressed in conjunction with either left or right on the Control Stick. This move has two variations, based on Bowser's distance from his opponent. If the two are sufficiently far apart, he simply lashes out with his claws, leaving a visible trail in the air. If Bowser is near enough to his opponent, however, he will grab a hold of his foe, allowing him to either gnaw on them or execute a throw move. If Bowser grabs them, he will be able to bite them repeatedly, until they manage to escape from his grasp. Nevetheless, grabbing them is a great way to deal a mass amount of damage.
Bowser is seen doing a similar move called Flying Slam in Super Smash Bros. Brawl. However, it is unknown whether the Koopa Klaw is retained in another way like Mario's Mario Tornado.