The Spike Ball is a destructive item seen in Nintendo Land: Balloon Trip Breeze.
The Spike Ball is just a simple black ball (Presumably metal) with spikes covering it. It is reflective and is carried by a hook under your Mii and a string.
Function EditYou pick this item up at the start of a level like a Package, and it even gives you 10 Nintendo Land Coins at the end of a level. The main use of this item, though, is to destroy Brick Blocks, Balloon Birds, and Balloon Breakers. This item is far heavier than a Package. This item will be lost if the player dies.