Ben 10 Fan Fiction Wiki
Ben 10 Fan Fiction Wiki
General Information
Species Metamentian
Home World Earth (Alternate Timeline)
Body Rock Humanoid
Alternate Counterparts Rockoustic (Tech 10: Rebooted)
Rolling Stone
Powers and Abilities
Abilities Sonokinesis
Giga Strength
Classification Mineraloid
First Appearance Alien 10

Rockoustic is an alien from Tech 10: Ultimatrix Unleashed.

His evolved form is Ultimate Rockoustic.

You may be looking for the Rockoustic from Tech 10: Rebooted.


Rockoustic's abilites include:

  • Geokinesis
  • Sonokinesis
  • Giga Strength
    • Essentially an enhanced version of Super Strength.
  • Limited Flight
  • Near-Complete Invulnerability
  • Fixed Existence
    • Rockoustic cannot be wiped from existence by any means except death; it is currently unknown why he has this out-of-place ability.


Rockoustic is a spike-covered humanoid made out of rock. He has eight fingers, boot-shaped feet, and wears the Ultimatrix symbol on his chest.


Rockoustic himself has no direct weaknesses; however, the Ultimatrix has a habit of turning Tech into practically any alien other than Rockoustic when transformation is attempted, despite its usual lack of errors. This is most likely due to tampering from Alvono, who previously controlled the functions of the Ultimatrix.

Planet and Species Information

Rockoustic's species, the Metamentians, were originally Humans from one of many alternate timelines. In one of the Celestialsapien's attempts to create universal protectors, however, a strange asteroid a mile in diameter was sent to strike the Earth, destroying most life on the planet and transforming the humans into Metamentians and Diamillons, respectively.

The surviving wildlife was also mutated to survive the new Earth, which had been flung outside their timeline into intertemporal space, changing its physical properties immensely. In addition to this, all water on Earth dried up, and the entire landscape was transformed into various types of stone.