Spiky Ball

Spiky Balls are items dropped by all Goblins except goblin scout while killed during a Goblin Invasion.

When thrown, they will roll over the ground damaging any monster (up to 4 or 5 hits) much like a Shuriken or Bones. They cannot be picked up once thrown. They will continue to damage monsters once they stop rolling, making it useful for traps, although you would have to reset it often. They decay over time while on the ground and there is a limit as to how many can be placed at a time.

Spiky Balls are fairly effective against Skeletron, as they can damage his hands and head as Skeletron slides and rolls along the ground.

As of the v1.0.4 update these can still destroy projectiles from the Goblin Sorcerer.

They are similarly useful against the Eater of Worlds as every segment will pass through the same space (unless it has split). In this way, the whole worm can be softened up. Spiky Balls are also as effective as shuriken and throwing knives when fighting the Eye Of Cthulu.

Spiky Balls will get destroyed in a lava trap even whereas other items won't.

Sell value : 4 Copper Coins.