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Rock Hammer (ロックハンマー, rokku hanmaa?) is a Battle Gear. It was used by Jake in Bakugan: Gundalian Invaders.



Large double blasters mount to a Bakugan's back and nullify the effect of the opponent's Gate Cards. In battle mode, the big axe on the right and the wielding iron ball on the left combine to become a huge energy cannon. The sword part of the ax becomes the laser and lights.


Bakugan: New Vestroia

Rock Hammer first appears in Fusion Confusion as a digital clone used by Spectra along with Swayther. Spectra attached it with Coredem and attached Swayther to Hawktor. Later, it was defeated when Drago learned how to use his Battle Gear.

Bakugan: Gundalian Invaders

In Brawler To Be, it was used as a surprise attack in order to defeat Avior.

It appeared in Hostile Takeover along with the real Coredem and Akwimos. It won this battle.

It appeared in Twin Attack and won.

In Decoy Unit, it was used to battle Strikeflier and Avior but lost.

It appeared in Curtain Call and used its Level 2 class ability.

It appeared in Colossus Dharak and used its Level 2 class ability.

It appeared in Jake's Last Stand to help Coredem against Akwimos.

Ability Cards
  • ???:
  • Rock Hammer Beo-Blaster: Subtracts 400 Gs from each opponent and adds 400 Gs to Rock Hammer. (Level 1 class ability)
  • Rock Hammer Battle Element: Subtracts 500 Gs from the opponent and adds 500 Gs to Rock Hammer. (Level 2 class ability)


The Copper version has 70 Gs and the Silver version has 60 Gs. The Gold version was released in Wave 2 of the Gundalian Invaders series and has 70 Gs. The Japanese Copper version has 180 Gs.

Element: G-Power(s):
Goldyp Gold: 70 Gs
Silvera Silver: N/A
Coppery Copper: 70 Gs, 180 Gs (Japan)
Reference Cards
  • Ventus: Move any Bakugan Gear or Trap from an unused pile to its owner's used pile.
  • Subterra: Any Gate Card bonuses higher than 100 are lowered to 100.
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