Crystal Shard

The Power Crystal (not to be confused with the Crystal Shards, its pieces) is a mighty crystal artifact and is the priceless treasure of Ripple Star. Upon Dark Matter's assault on Ripple Star, Ribbon takes the crystal in hopes of protecting it. But as she flees the planet, three of Matter's Minions chase her through space. Ultimately, the Power Crystal is broken into approximately 100 small pieces and fall to many different planets around Ripple Star. Five friends (Kirby, Ribbon, Waddle Dee, Adeleine, and Dedede) then make it their goal to restore the power crystal to its former glory by collecting every Crystal Shard. As of now, the Power Crystal once again resides on Ripple Star.

While the Crystal's true purpose was never given, it is known that It is the only thing that can purge Dark Matter from a body without using force. However it can be assumed that it has the power of purification in general which may have been the reason Dark Matter invaded Ripple Star in the first place to prevent its use against him. Other known powers of the Power Crystal is the ability to create portals (that can go as far as even another Star) and possibly locate missing shards as the portals it created during the storyline of Kirby 64 lead to other Stars with shards of the Power Crystal. Its last known ability is to be used as a weapon that can fire small projectile presumable made of crystal.