Change Kirby from a pink puffball into a white snowball. Packed with powder, Kirby can pack a pow by bowling over enemies.”
— Description • Nintendo Power (Volume #134)
Ice + Ice (also called Rolling Snowball or Giant Snowball) is a Power Combo from Kirby 64: The Crystal Shards. Kirby will get this ability if he combines two Ice abilities together. With this, a large amount of snow will develop around Kirby, causing him to do a crushing-force roll, then plow and collect enemies. Not only are they trapped in the snowball, but they also get frozen and pop when the snowball is released.
This ability can be used to get a Crystal Shard in Stage 4 of Neo Star. It is used to break through a reddish-brown panel rather than a typical blue panel.
Ice + Ice
Kirby becomes a giant rolling snowball, he will roll on until a wall is hit. Enemies will be absorbed into the snowball. After hitting a wall (or pressing B again) the snowball disappears, and any absorbed enemies are launched out as projectiles.
Kirby can roll along as a gigantic snowball, crushing anything in its path.”
— Description • Official Strategy guide
Kirby forms a giant snowball that engulfs all enemies as it rolls along. When Kirby hits an obstacle or when you press B, the snowball explodes, destroying all the trapped enemies.”