Vexfist (ベックスフィスト, Bekkusufisuto?) is a Mechtogan from Bakugan: Mechtanium Surge. He is Boulderon's Mechtogan.
He is heavily armored with enormous rounded shoulders and legs. Vexfist uses his powerful strikes to drain his opponent's energy. Wide expanses of reinforced armor surrounding his body shield him in battle from front to back. Extra weaponry is activated on his chest and also behind Vexfist's head to offer maximum firepower.
He makes his first appearance in the anime in Unlocking the Gate. He was summoned when Drago and Dan shared Shun, Marucho, Rafe, and Paige part of Code Eve's energy along with Silent Strike, Accelerak, and Swift Sweep.
He appeared again in True Colours alongside Swift Sweep being summoned by Wolfurio and Boulderon. They then battle against Rockfist and Deezall and easily win.
He and Swift Sweep reappeared in Dark Moon where they fought against several Dreadeon clones and a Subterra Razen Titan clone. They later defeated a Ventus Razen Titan clones with the help of Accelerak. All three were later defeated by Evolved Razenoid with ease.
Vexfist is #08 in the Mechtogan series. He has eight holes for BakuNano (Two on each shoulder, one on each leg, and one on each arm). It was released in Wave 2 of Bakugan: Mechtanium Surge.
An Aquos Vexfist has 200 Gs and a Pyrus Vexfist has 200 Gs.
- He is the only Mechtogan besides Zenthon to have eight holes for BakuNanos.
- In the anime, when Vexfist activates, his shoulder parts open to reveal cannons and claws, but the toy form doesn't have shoulder pads and the claws can't be opened.
- Vexfist has Die Cast metal around most of his body.
- Interestingly, Vexfist is #8 in the Mechtogan series and has eight BakuNano holes.