Hey. I discovered something about Dedede's down-B, and I'm not sure it's been posted anywhere (I searched). If you fully charge it up and tilt the control stick VERY slightly, the slightest walk you can possibly do, Dedede will "shuffle" across the stage really fast... It's quite hard to do but cool nonetheless.
Here's a video courtesy of Klisk: http://www.youtube.com/watch?v=FrkWeh87t1I
Here's a video courtesy of Klisk: http://www.youtube.com/watch?v=FrkWeh87t1I