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Eccentric Rock

the sticky-Protodermis trap

The Eccentric Rock is a Xian trapping weapon that bursts on impact into a cage of sticky protodermis. It comes from a fan contest entry made canon by writer Greg Farshtey, and never appears in a published BIONICLE story.

By Dom

The Eccentric Rock is a trapping weapon made on XiaXiaA hostile island southeast of Metru Nui, home to the Vortixx and their brutal mercenary culture. by the VortixxVortixxThe amoral weapons dealers of Xia who sold to anyone willing to pay.: a rock with a hollow centre full of sticky protodermis, which bursts on impact and sets into a cage around whatever it hits. Unlike almost everything else on this site, it has no primary source to cite. It began as a fan's entry in a storyline contest run by a fan site, which writer Greg Farshtey then declared canon, and it has never appeared in a published BIONICLE book, comic, film, serial or game.

Function#

As the contest entry describes it, the rock is thrown or catapulted at a target and explodes on impact, splattering the target with the protodermis inside, which then forms a cage. Each rock holds only a small amount, so the cage normally lasts no more than an hour. The name comes from the strange, eccentric shapes the cages always take. This is a writer-endorsed fan description, not a scene from any story.

Users and variants#

The same entry describes the Eccentric Boulder, a larger version that holds more protodermis and so traps its target for longer, and which has to be launched rather than thrown. Nothing in the published story shows either weapon in use, so claims about who used them, such as the Archives' Rahi collectors, aren't supported and have been removed from this page.

Frequently asked questions

What is the Eccentric Rock in BIONICLE?
A trapping weapon from Xia: a rock with a hollow centre full of sticky protodermis, which bursts on impact and forms a cage around its target.
How did the Eccentric Rock work?
Thrown or catapulted at a target, it explodes and splatters the target with sticky protodermis, which sets into a cage. It only holds a little protodermis, so the cage usually lasts no more than an hour.
Does the Eccentric Rock appear in the books or comics?
No. It was a fan entry in a fan-site storyline contest that Greg Farshtey made canon. It doesn't appear in any published book, comic, film, serial or game.
Why is it called the Eccentric Rock?
Because the cages it makes always come out in strange, eccentric shapes, according to the contest entry.
What was the Eccentric Boulder?
A bigger version described in the same entry. It holds more protodermis, so its cages last longer, and it has to be launched by catapult.

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