Dancing Blade is Marth's Side Special Move in Super Smash Bros. Global Apocalypse. It's a unique special move, as it consists of four different attacks chained together; a variety of combos can be performed depending on ones tilt on the joystick for each attack. It has the same function from Brawl. It allows Marth to use up to 18 different combinations.
Wii - Super Smash Bros. Brawl (2008)