I finished this last night. That final boss theme was aweome, and also the
theme was fantastic. This game's music is such sweet goodness; it, coupled with the graphics, makes for a tremendous comfy atmosphere (especially when wrapped up in a fuzzy faux-wool blanket)! The powerups were excellent (Water, Spear, Fighter, etc) and fun to use. The level design was fantastic, both aesthetically and functionally (world 5, black and white levels, etc). It was an incredible joy to play, and I think it's the Kirby game that some people were waiting for. Like every other Kirby game, I can't help but to play this with a smile on my face (but everything about this game was so adorable!).
I ended up picking this up at the last minute (and didn't see a lot of media for it), but I'm very happy with my purchase.
How's co-op for this game? I might get my boyfriend to play a little bit with me when he isn't too busy.