I found it interesting that this hasn't been brought up at all, although I admit I only first saw of this just now. It appears to be a new DS Kirby game, although it appears to be a spinoff title that involves the use of multiple Kirbys (hence the name "Mass Attack" I suppose). Looks interesting too.

That's generally a good thing in my eyes. Means the programmers have had time to familiarize with the hardware.