|“||An impressive machine built by the mysterious invaders. It's chock full of advanced technology. It is unknown if this giant robot has any weak spots.”|
|— Vs. Gigavolt • Kirby: Planet Robobot|
Gigavolt is a giant green robot manufactured by the Haltmann Works Company. It has two long arms and a short, cylindrical head with an orange-rimmed screw on the top. In addition, it has giant gray hands, encased in red armor, with screws attached to segmented arms, two yellow eyes, an orange mouth of three lips, a glowing core inside its green armor, and multiple upward-facing cannons on its back.
Gigavolt II is a purple upgrade of Gigavolt. It has two layers of armor on its hands.
At the end of Stage 3 of Patched Plains, Kirby in a suit of Robobot Armor rolls into a flat area, where two Vols ambush him. The two Vols are presumably working for Gigavolt. Once both are destroyed, Gigavolt itself emerges, its head flying in and connecting to the rest of its body. It sits in the background, and as such, cannot be attacked directly. It instead makes itself vulnerable when it attempts to slam one of its fists on Kirby. Once it hits the ground, Kirby can destroy the protective covering, then unscrew the screw on its hand, dislodging it, and causing the arm to explode. Once both arms are destroyed in this way, Kirby then flies onto Gigavolt's head in an attempt to unscrew the screw there. He has to do this quickly, as Gigavolt deploys six missiles that close in on him. If the missiles do hit Kirby, Gigavolt launches more of them as the cycle repeats. When Kirby finishes unscrewing the last screw, Gigavolt explodes, and the stage exit flies out of it for Kirby to enter.
At the end of Stage 5 of Access Ark, Gigavolt II emerges and attacks Kirby. It has two layers of armor on each hand, as well as two attacks: It can pound the ground three times in a row with one hand, and it can release shock waves with a single pound. It is defeated the same way as Gigavolt. When Kirby tries to unscrew the screw in Gigavolt II's head, the robot releases nine large missiles that deal more damage when they make contact.
Gigavolt is a stage in Kirby Fighters 2; the boss appears in its eponymous stage. This time, it has improved textures and details as with the characters and gimmicks on this game, and now has blue linings between each segment. This Gigavolt has green, unbreakable armor on its hands and lacks the screw on its head, thus it cannot be defeated by any means. The music track that plays on the stage is "Pink Ball Activate!" the theme of the Robobot Armor from Kirby: Planet Robobot. A remix of the music piece can also be unlocked for the stage once the player has achieved Fighters Rank 97.
|“||The second edition of the Gigavolt was developed for the express purpose of eradicating all obstacles. Priced at 8.6 billion Haltmanns, it's twice the cost of a first-generation Gigavolt.”|
|— Vs Gigavolt II • Kirby: Planet Robobot|
- Gigavolt II is the only creation of the Haltmann Works Company that have its exact costs listed, at 8.6 billion Haltmanns.
- Gigavolt and Gigavolt II are the only bosses in Kirby: Planet Robobot to not be fought in The Arena and The True Arena. This is likely due to the nature of Kirby needing the Robobot Armor to fight them, as well as the Invader Armor mid-boss not being present.