Youtube it.
I've watched the show, and it didn't seem so bad... but I never really played many of the Kirby games for some reason (I blame my friend - he's a huge Kirby fan so he should've forced them on me by now) so that might be why.
I have nothing against Triple D and am glad he's in, but his inclusion excites me more from what it means for other characters than just the fact that he's in.
There's no denying that although popular, the Kirby series hasn't really reached the super-stardom of the Metroid, Mario, or Zelda franchises. If it has three reps (which I find reasonable - they're all interesting characters) than chances are good for certain other characters.
Metroid is the best example. Currently, Samus/Zero Suit Samus are the same character slot (like Zelda/Sheik) so that's like 1.5 reps (or two, I don't care how you count it). Metroid is a more popular series, so there's VERY good chances of Ridley and Dark Samus. Possible Mother Brain as a boss, as well.
Mario obviously has a bazillion reps. Zelda has 4.5 in Melee (Ganondorf, Link, Young Link, and Zelda/Sheik). Midna (don't care if she's in or not, personally) thus has semi-decent chances - especially if Young Link is dropped. I can see a Ganon transformation being Ganondorf's Final Smash (either same moves but stronger, GigaBowser style; or simplified powerful moves, Fox Landmaster style).
And you can apply it to other, popular series as well.
Also... on the "mechanized hammer" comment... maybe his hammer is one of those extendo-spring-loaded hammers? *shrug* I dunno. Definately looks like he'll be interesting to play, which is all that truly matters in my book.
Edit: Also, Sakurai is obviously mind-gaming those that love Falcon, and won't announce him until about a week before the Japanese release. Just because he likes watching you guys squirm.