It's Kirby in 3D. That's pretty much the game in a nutshell. Didn't personally bother with the challenges seemed like a bit too much of busywork and backtracking for missed collections was a no go with the game locking you and asking you to replay a stage if you missed something. Great bossfights and some amazing standout stages amidst some typical ones. Some ideas went reused a bit too much toward the end, but upgrading power ups was a neat addition.
Fun, and also very challenging if you should decide to go for completion.