Wow! This is a great addition to the line of Kirby games!
The game (Note: spoiler incoming!) not only is a remake of Kirby Super Star, but has more challenging levels as you progress throught the easy versions!
(Spoiler is gone) The game's Multiplayer allows you to do 3 minigames via Nintendo DS Wireless Communications, called "Kirby's Card Swipe", "Kirby On the Draw", and "Snack Tracks". You are also allowed to play in co-op on story-providing you have two K:SSU, although you can also do co-op in the first levels with one K:SSU.
The controls and music are well done, and you get a good laugh when you fight a Waddle Dee as a boss (SERIOUSLY!).
This is, overal, 9.5. Auwsome!