Gordo

A Gordo is a ball of spiked metal that is 99% indestructible. Normally, it stays still and does not do anything interesting, but when provoked it is capable of unleashing deadly and destructive attacks.

Note that the gordo is only 99% indestructible. Crash Kirby is the only thing capable of destroying it.

Behavior
A gordo does not usually move. They spend the majority of their lives sitting in their habitat. They feed on smaller creatures that pass by, using their long metal spikes to spear their prey. However, a gordo almost never moves. They do everything they need to do to survive by sitting in one place.

But when provoked, Gordos will violently kill and destroy everything in their paths. A gordo's attack is to enlarge its body to at least six times its normal mass. It will then use its long metal spikes to spear its enemies. This, coupled with the gordo being 99% indestructible, makes attacking a Gordo an extremely ill-advised thing to do.

The 1998 Gordo Incident
In late March, 1998, a gordo in Cappy City was accidentally provoked when a construction site disturbed its habitat. The gordo viciously attacked, causing mass destruction throughout the surrounding area. It wouldn't have been that bad, but as fate would have it, an entire colony of gordos lived in Cappy City, consisting of nearly one hundred gordos. The other members of the colony were contacted, resulting in mass destruction. This was before Kirby, so nothing could destroy them. It seemed that Dream Land was pretty much screwed.

But for whatever reason, the gordos calmed down after a few minutes. Severe damage was still caused, but it could have been a lot worse, had the gordos not relented.

Trivia

 * Following the 1998 gordo incident, it took Cappy City only 2 months to rebuild, thanks to Le Swaggar Army's speedy relief process. Former king Dedede tried to stop this so that he could build a monument honoring himself in the middle of town, but failed.
 * If a gordo is given cheesecake, it will make a strange sound, roll over, and eat the cheesecake. This has been believed by some that it is a strange exotic ritual to honor the cheesecake god, which is theorized that the Gordo species worship. But this has been never proven and has only been supported by one obscure scientist who's probably high on cheesecake.