miracle matter
The supposed final boss of Kirby 64: The Crystal Shards. Serving as a mastermind of Dark Matter (and second-banana to 02 by extension), it is a mysterious icosahedron that is capable of replicating Kirby's copy abilities to use against him in battle. Kirby can only use the respective copy ability against it to defeat it (for example, Kirby can only use Cutter against Miracle Matter's own Cutter).