Spike Ball

The Spike Ball is an object (not alive) that appears in two episode of Battle for Dream Island, one being episode 23 and the other being episode 25. The spike balls are used as projectiles, being taken adventage of by the Green Announcer clone and Rocky.

Appearance
The appearance has never really changed over the course of Battle for Dream Island.

Hurtful!
Spongy, hit by 3 spike balls.

Announcer, hit by 1 spike ball.

Return of the Hang Glider
Rocky technically gets hit by a spike ball.

Pencil gets hit by a spike ball due to Rocky barfing it out.

Trivia

 * One of the spike balls smashed a window in episode 25.