A portion of Nintendo Life's review of Kirby: Triple Deluxe:
"Kirby’s flavor of platforming is pretty straightforward: run, jump, float, and inhale all manner of objects and baddies in the name of reaching the end of the stage. Hidden around each stage is a number of Sun Stones for Kirby to nab. While not all must be found, a certain number per world — which usually comes in at a little over half of them —are required to unlock the boss stage. Collecting all Sun Stones in a world unlocks a special stage in each. The Sun Stones aren’t always particularly well hidden, with many able to be found by poking around just a tad."