Male Originally a small Metal Card Bot, but has turned into a hamster due to unknown causes. Possesses a bright personality and loves fighting very much. He prefers fair fights and is said to strongly dislike cowardly tactics. He has become a hamster with a single yellow pattern on his forehead. Since becoming a hamster, he's just a cute male hamster who loves to scrap. He is brothers with Flexivector (the younger brother). When he was a Metal Card Bot, he had a Lamborghini vehicle mode, but now he is just a tiny hamster. TMI Among snacks, he loves sunflower seeds and pumpkin seeds immensely. (If he's sulking, giving him these will cheer him up.)

Male Possesses a cold, blunt, and aloof personality, but shows a bit of a tsundere side only toward his younger brother, Sparkbeat. Though he seems blunt on the outside, he actually cherishes his brother deeply and is always worried and thinking about him in his heart. (He never says it out loud.) Originally a small Metal Card Bot, but has now become a blunt-looking, prickly hamster. He is brothers with Sparkbeat (the older brother). When he was a Metal Card Bot, he had a racing car vehicle mode, but currently, he has become a blunt, light purple hamster. TMI When he receives snacks, he shares them with Sparkbeat. He loves and cherishes Sparkbeat immensely but doesn't show it outwardly. Among snacks, he is said to like finely chopped broccoli the most. (But he doesn't show it.) Example: Don't be so spoiled, Sparkbeat. (Aww, how can my little brother be so cute even when he's acting spoiled?!)

Female Originally a large Metal Card Bot, but turned into a hamster due to unknown causes. She values chivalry and is usually cold, but only in front of Peruru does she call her 'Lady Peruru' and treat her kindly with a soft voice. (This remains the same after becoming a hamster.) When she was a Metal Card Bot, she had a large transport plane vehicle mode, but now she has become a cute hamster with green eyes. TMI She is said to occasionally pick a single flower and bring it to Peruru. Among snacks, she likes sliced carrots the most.

Male Possesses an arrogant and prickly personality and has currently become a hamster. Originally a large Metal Card Bot, but turned into a hamster due to unknown causes. When he was a Metal Card Bot, he was an arrogant fire truck, but now he has become a prickly and arrogant hamster. TMI He sulks easily. Whenever that happens, giving him his favorite snack, walnuts, is said to cheer him up.

Male Metal Card Bot He values justice and has a cold personality, but is kind to those he is close with. His vehicle mode is a police car, and he is a small Metal Card Bot (4.5m tall). He wears pink goggles, and his original eye color is blue. While he is just and cold, he is surprisingly clumsy. (Quite a lot.) He studies the human world and lives among humans and Metal Card Bots. He is the one who cleans up the mess when Taki and Shadow X cause trouble.

Female Wild Card Bot A mischievous prankster with a bright personality. A cheetah-type Wild Card Bot whose vehicle mode is a yellow sports car. Her running speed is so fast it's invisible to the eye, but it takes a lot of energy, so she cannot maintain that speed for long. She speaks in a Busan dialect. She is a small Wild Card Bot (4.2m tall).

Male Wild Card Bot Blunt and cold, but becomes an emotional 'F' type only in front of Soleil... A lion-type Wild Card Bot whose vehicle mode is a fire truck. A medium-sized Wild Card Bot (8m tall). He is the second one who cleans up the mess when Taki and Shadow X cause trouble. TMI In front of Soleil, he laughs and even cries...

Male Metal Card Bot Possesses a bright personality and causes more trouble than Taki. He calls Blue Cop 'Blue-hyung'. His vehicle mode is a purple VTOL, and he is a small Metal Card Bot (4m tall). He is a troublemaker and very playful. (He only listens to Blue Cop, and even then, only a little.)

Owner of the Metal Breath Male 12 years old Appearance with blue hair and blue eyes. He is partners with Blue Cop. Possesses a bright personality and likes riding bicycles. (Surprisingly good at it.) TMI He is said to really hate math and isn't even good at it. (So Blue Cop helps him with his math homework every day.)