Katamari
From Katamari Wiki
A Katamari is a magical device created by The King of All Cosmos. It is a multicolored, bumpy ball that has the ability to collect objects on its surface. Any objects that come in contact with the Katamari gain this ability until they are knocked loose. A sharp knock by a moving object or trying to roll up an object too large for the Katamari will cause objects to fall off. They can vary in size and shape, from a few centemeters to a few meters wide. This does not include the objects that it has collected.
Katamaris are used to collect objects to create stars from. The number of objects collected is not as important as the size of the Katamari. A Katamari with a large number of small objects may not pass the size requirement, while one with fewer, larger objects will. Once a Katamari has reached a certain size, the King can then turn it into a star or planet; the required size seems to be arbitrary, as a larger Katamari may be used to make a smaller star than a smaller Katamari.
Apparently, any object can be turned into a Katamari, as on more than one occasion, the King has used other, more unusual objects to collect objects with, including an origami ball and a sumo wrestler. The process of creating a Katamari is unclear, although it seems to be an ability shared by the Royal Family. The Moon, the Earth, and even the Sun have been used as Katamaris by the Prince and King.
A newer feature added in Katamari Forever is the ability to make the Katamari hop. Called the Prince Hop, it allows the Prince to jump up onto higher places.
