After surviving the Eclipse, Guts (Berserk) replaced his lost left arm with a powerful mechanical device known as the Cannon Arm.
Wahl Icht (Fairy Tail) as a Machinas can make his arms more robotic to augment his strength and shot fire blasts.
Edward Elric (Fullmetal Alchemist)
Kankou/Umibozu (Gintama) had his left arm torn off by his son, so he replaced it with a mechanical one, though he did lose it from time to time in battle, such as against Utsuro.
Tōshirō Hijikata (Gintama) had the matsuibō connected to his arm evolve into a Super-Electric Matsuibō RX.
Kōtarō Katsura (Gintama) had his right arm replaced with Hijikata's Super-Electric Matsuibō RX by Kagura.
After losing his left arm to the Shinsengumi, Oboro (Gintama) replaced it with a robotic one, allowing him increase his fighting style.
Rudol Von Stroheim (JoJo's Bizarre Adventure Part II: Battle Tendency) shows off his new limbs!!!
Kiru (Karakuri) has a Mechanism on his right arm, allowing him to inject liquid methane into his victims and control its pressure and temperature.
Franky (One Piece) is a cyborg with robot arms that allow use of arsenal of artillery...
…or basic brawling.
After the loss of his right arm, Zephyr (One Piece: Film Z) was given the Battle Smasher, a gigantic mechanical arm built by Marine scientists...
...and has a mechanical arm that works no worse than his original arm that was cut off.
The inside of Lee Pyron's (Shaman King) arm.
Jushi Mataza Tsumuji (Tenjho Tenge) controlling eight robotic arms via his two hidden normal arms to wield eight spears.
Vash the Stampede (Trigun) using the hidden gun within his cybernetic left arm.
Genki Ito, also known as, Crystal Clear, using his abilities, thanks to his new Teal-Blue robotic limbs that was healed with bionics after an incident that left him extremely injured.
Matilda the Armadillo (Archie's Sonic the Hedgehog)
Payback Fox (Archie's Sonic the Hedgehog)
After a huge explosion, Warp Darkmatter (Buzz Lightyear of Star Command) gained a cybernetic arm that was grafted to his body and carries a lot of alien weaponry or even morph into various weapons, including similar Star Command weapons and illegal weapon like a plasma cannon which the Galactic Alliance outlawed.
Victor Stone/Cyborg (DC Comics)
Vera Lynn Black (DC Comics)
Della Duck (DuckTales 2017)
Hoss Delgado (The Grim Adventures of Billy and Mandy)
The KGB (Marvel Comics) created and attached a robotic arm to James Bucky Barnes after he lost his original.
Garrison Kane (Marvel Comics)
Nathan Summers/Cable (Marvel Comics)
Rick Sanchez (Rick and Morty) with his cybernetic arm.
Jack (Samurai Jack) acquired a "cybernetic, synaptically-linked dinodextric isometric poly-duritaniam power gauntlet" from the scientist Extor in order to better fight the Ultrarobots.
After having his right arm severed by Alopex, Tiger Claw (Teenage Mutant Ninja Turtles 2012) had it replaced with a robotic appendage…
…which can be swapped out for a claw-like appendage…
…or a raygun.
Cyborg (Teen Titans)
Arsenal (Young Justice) uses his bionic arm for many purposes.
After having his arm cut off, Van Kleiss (Generator Rex) replaced his lost arm with a mechanical one that has the same features as his gauntlet he originally wore.
Long John Silver (Treasure Planet)
Shiro and Sendak (Voltron: Legendary Defender)
After initially modifying a chainsaw to serve as a replacement hand, Ash Williams (The Evil Dead series) crafted a fully functional robotic hand from a metal gauntlet.
Leo Dooley (Lab Rats) right arm became bionic after an near death accident, which his uncle Douglas heal his arm by implanting bionic in it which gives him Energy Transference, Laser Sphere Generation, and Super Strength that is equal to his step brother Adam.
Anakin Skywalker (Star Wars) gained a cybernetic arm on his right hand after his first duel with Count Dooku.
Like his father, Luke Skywalker (Star Wars) has a cybernetic arm on his right hand.
Nathan Spencer (Bionic Commando)
Barret Wallace (Compilation of Final Fantasy VII)
Zadornov's (Metal Gear Solid: Peace Walker) possesses a built-in lighter that can be used as both a flamethrower and makeshift rocket.
After losing his left arm, Venom Snake (Metal Gear Solid V: The Phantom Pain) had it replaced with a customizable red prosthetic.
The iconic Cyberdemon (Doom) uses its, rocket-launching, robot arm to attack the player.
After losing his left arm and life to Ryu, Yaiba (Ninja Gaiden) was revived with cybernetics, particularly Cyber Arm.
After losing his right arm in the Omnic Crisis, Akande Ogundimu/Doomfist (Overwatch) was given cybernetic prosthetics by his family's company, as well as the Doomfist gauntlet, which is said to be powerful enough to level a skyscraper.
Samuel Rodrigues (Metal Gear Rising: Revengeance) unlike most among Desperado and others like Raiden, Sam isn't a cyborg aside from having his right arm replaced with a cybernetic after losing it in a fight against Steven Armstrong.
Rivet (Ratchet & Clank)
SCP-073 - Cain (SCP Foundation)
After losing her right arm to Adam Taurus, Yang Xiao Long (RWBY) eventually obtained a cybernetic one from James Ironwood.
James Ironwood (RWBY) displaying his cybernetic augmentations, including his arm.
10 Interesting Facts About Darth Vader's Suit You Didn't Know - Star Wars Explained
SCP-073 Cain (SCP Animation)
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