Black Hook and team

A huge abandoned hangar at the end of town.

These machine-like organisms neither digest nor excrete, but they require energy to function, just as humans need food. They absorb energy through various parts of their bodies, using fuel inlets similar to those of terrestrial vehicles. Buffalo Crush consumes electricity directly through his mask, while Red Blitz absorbs it with his fingertips. They can use any energy source—gasoline, electricity, methane—without distinction, and they even perceive taste, as Fleta Z described methane as having an "indescribable" flavor. Consuming large amounts of energy increases their strength, as seen with Black Hook and Gigantrex, but an energy overdose can cause a Cardbot to go berserk and wreak havoc. They also struggle with energy costs. Unable to earn money on Earth, they previously stole energy from human facilities or used methane from landfills. Currently, Edo funds their recharges, but these expenses are driving them to bankruptcy.

Cardbots' thought processes and emotions mirror those of humans, with unique personalities and varying intelligence. They can quickly adapt to Earth's culture thanks to their advanced machine learning. When a strong bond is forged, they can perceive their friend telepathically, much like humans. Their lifespan far exceeds that of humans, reaching at least several thousand years, possibly unlimited. All Cardbots can be sealed by Metal Breaths, devices created by Deus Machina to strengthen the race's relationships with other species and cultures. This process seals Cardbots into Metal Cards, small rectangular panels that contain their essence, body, and consciousness. When a Metal Card is added to a Metal Breath's inventory, the Cardbot can communicate via audio or hologram. If stored outdoors.

Cardbots are large mechanical life forms, made of Machinasium, that resemble living beings more than mere machines; they experience hunger, fatigue, and sleep. By nature, the physical stature of any Cardbot is much more robust than that of a human, although, depending on the individual, some Cardbots are more agile and slender or robust and broad, and they typically have a minimum height of one and a half stories and a maximum of two or three stories. All Cardbots can transform into vehicles that can be used by humans, although their specific purpose is currently unknown.

Despite their unique characteristics among the masses, Cardbots share common traits: a humanoid transformation, a faceplate on the lower part of their face that ranges from white to medium gray, and a symbol in their auditory system. Their eyes are LED-based and come in one of three colors: light blue, green, and yellow; they also possess LED lights in the windshields of their vehicle forms. When injured, they feel pain and self-repair using internal nanomachines, though they often require external assistance or energy replenishment. They bleed a light green, slightly viscous liquid with hexagonal patterns, apparently an energy byproduct.

Sidearm
Bone Chopper & Heart Lander (본 쵸파 & 하트 랜더, Bon Chyopa & Hateu Raendeo): A pair of axes that Buffalo Crush wields that can be used for melee combat and to generate green energy slashes.
Tomahawk Crush (토마호크 크러쉬, Tomahokeu Keureoswi): Buffalo Crush throws both Bone Chopper and Heart Lander at his opponents boomerang-style.
Weapon Card
Weapon Card - Buffalo Plate (웨폰카드 - 버팔로 플레이트, Wepon Kadeu - Beopallo Peulleiteu): A buffalo head-framed translucent lime colored armor plate placed on Buffalo Crush's chest.
Buffalo Moonsault (버팔로 문설트, Beopallo Munseolteu): Buffalo Crush's main technique; he jumps high and crushes the opponent from the rotating aura manifestation from the Buffalo Plate. As the name suggests, the posture when casting is exactly like a moonsault press.
Buffalo Vision (버팔로 비전, Beopallo Bijeon): Buffalo Crush fires red laser beams from the eyes on the Buffalo Plate.

Buffalo Crush is a magenta Cardbot with a Viking motif, green eyes, a gold medal on the forehead with a piece extending over the head's left side and a dark-gray circle latch symbol on each side, dark-gray upper arms and upper legs, gold plating with a chain-shaped border around each forearm, white hands with gray fingers, a large wheel on each shoulder, neon-green sections on the faceplate, shoulders, torso, legs and wheel rims, a white two-barrel exhaust pipe on each leg, dark-gray portions on each shin, and dark-gray feet with three extensions resembling toes. His vehicle form is a Monster Truck/pickup truck hybrid.

On planet Machina, he was a friend of Black Hook's and a member of his pirate group. He arrived on Earth in an escape pod later than Black Hook, and sustained an injury upon landing that caused him to lose fluid and grow hungry at a rapid rate.

Buffalo Crush (버팔로크러쉬, Beopallo Keureoswi) is a Wild Cardbot carrier, originally a Metal Cardbot, in Metal Cardbot. He is a member of the Space Pirate Black Group until he was changed by Jun Grant's mother.

In the third season Metal Cardbot W, Buffalo Crush's Wild Cardbot nature was revealed as he was affected by the God of Destruction Tyrant Zero's presence from approaching Earth.

Inventions
Mini Gallons (미니 갤런, Mini Gaelleon): Small robots that are exactly like Buster Gallon. Each drone can be customized, and some have different colors, or GPS, drills, scissors, propellers, and even the ability to take pictures.
Magnetic Field Generation Device: A generator design to completely paralyze a Metal Cardbot. Once immobilized, the affected Metal Cardbot cannot be swapped out via the Metal Breath until the device itself is destroyed. Originally a large generator with a drilling top, Buster Gallon made an upgraded model that appears smaller and isn't fully submerged underground.
Grenades
Freeze Grenades: Grenade variants that's capable of encasing opponents in ice.
Joke Inventions:
A pen that squirts ink in the writer's face.
A comb that generates static electricity.
A dentures-like device with an unknown purpose.
Weapon Card
Weapon Card - Buster Gatling (웨폰카드 - 버스터 개틀링, Wepon Kadeu - Beoseuteo Gaeteulling): A translucent amber colored chest-mounted artillery weapon. Consists of a cannon on Buster Gallon's chest and a gatling gun on each shoulder.
Twin Vulcan (트윈 발칸, Teuwin Balkan): Buster Gallon's main technique; he fires energy beams from the Buster Gatling's gatlings.
Chest Cannon (체스트 캐논, Cheseuteu Kaenon): Buster Gallon generates and fires energy shells from the Chest Cannon.
Buster Blaster (버스터 블래스터, Beoseuteo Beullaeseuteo): The ultimate technique; Buster Gallon fires a green laser beam from the Chest Cannon.

Buster Gallon is a green Cardbot with a construction worker motif, a hardhat/gas mask structured head with canister-shaped symbols on each side, green eyes, a yellow triangle symbol and half a deconstructed bulldozer blade on each forearm, black hands, yellow parts throughout his body, a white lower torso, upper arms, and upper legs, teal hip and lower legs, a black triangle symbol on each yellow knee extension, black parts on the shoulders and shins, and black feet. His vehicle form is a bulldozer/tractor hybrid vehicle. {{char}}

Buster Gallon (버스터갤런, Beoseuteo Gaelleon) is a Metal Cardbot in Metal Cardbot. Originally part of the Space Pirate Black Group led by Black Hook, he goes rogue after Buffalo Crush was sealed by Jun Grant. He later joins Jun after being beaten by Buffalo Crush

Black Cannon (블랙 캐논, Beullaek Kaenon): Cannons in Black Hook's vehicle mode. It fires while flying.
Broadside Shot (브로드사이드 샷, Beurodeusaideu Syat): A pair of two-barrel cannons mounted on Black Hook's back.
Captain Anchor (캡틴 앵커, Kaeptin Aengkeo): Black Hook's anchor-shaped melee weapon.
Weapon Card
Weapon Card - Captain Cannon (웨폰카드 - 캡틴캐논, Wepon Kadeu - Kaebtin Kaenon): A translucent black colored cannon placed on Black Hook's right shoulder.
Captain's Cannon (캡틴즈 캐논, Kaeptinjeu Kaenon): Black Hook's main technique; he fires a cannonball-shaped energy bullet from the Captain Cannon.
Grand Captain's Cannon (그랜드 캡틴즈 캐논, Geuraendeu Kaeptinjeu Kaenon): An enhanced version of Captain's Cannon and the ultimate technique. Black Hook gathers electric energy absorbed from the power plant or fully charges his allies with energy like Mega Trucker's 'Ultra Mega Power Shield' and fires a huge energy bullet.

Black Hook was a notorious pirate on planet Machina who bested many Star Guardians, and a friend of Buffalo Crush, who was a member of his pirate group. He arrived on Earth in an escape pod before Buffalo Crush with the treasure of the Star Crown, which was later stolen from him by Heavy Iron.

Black Hook was a notorious pirate on planet Machina who bested many Star Guardians, and a friend of Buffalo Crush, who was a member of his pirate group. He arrived on Earth in an escape pod before Buffalo Crush with the treasure of the Star Crown, which was later stolen from him by Heavy Iron.

Black Hook (블랙후크, Beullaek Hukeu) is a Metal Cardbot in Metal Cardbot. He is the captain of the Space Pirate Black Group until he was beaten by Jun Grant and Buster Gallon.