Here are two characters I did not art for at all other than the fugly rookie drawings I did back in the day, lol, so a lil re-introduction is in order! (aka. the concepts I had in mind about these two for a while)

Overall Cobolt and Ariana are brother and sister, unlike Roller and other robot monkeys however, the two siblings are androids, 100% artificial inteligences, however, they're still autonomos and achieved sentience, so they are very much alive and their own Monkeys.

Ariana is an energetic girl with a go getter cheerful personality, she was built to train Roller and help him overcome his own hesitation to make leaps of fate, this of course leads to Ariana to make some decisions that can get her hurt, but it's something she doesn't mind, to her, carrying scars is proof that you survived whatever you went through, that it made you stronger, although one of her ears is partially destroyed, she can still hear for the most part but not as good as if she had let the scientists fix her ear, wich she never allowed, weapons wise... Well, I'll get back to you on that one cuz I never got around it, lol.

Cobolt on the other hand is more serious and reserved, he's more focused on completing whatever task he gets assigned no matter what, serving as the other mentor for Roller, teaching him how to stay commited to the mission and letting him learn the basics of combat and companionship, and more importantly, loyalty, his eyes remain more red and sinister due to him staying slightly more robotic than his sister, in spite of this, Cobolt ends up being an even closer friend to Roller, cuz underneath the dark and ominous exterior, Cobolt can be quite the confidant, opening up to Roller about himself and letting Roller open up about his own insecurities about being chosen to become a super battle machine of sorts.

My main concept for Cobolt in this more "independent" version of Roller (a story away from the show), is that Cobolt ends up being reprogramed to serve the company Roller and his friends are fighting against, turning Roller's mentor and friend into an enemy, Cobolt's commitmen to Roller's friendship however turns what could be a bitter enemity into a rivalry of sorts, in wich the student now has to surpass his former teacher.

Powers wise, Cobolt is supposed to have clawed hands, not like Antauri's but rather bladed fingers, almost like he had swords rather than claws, being a full machine, Cobolt learned to control the electricity in his body, giving him an extra edge in battle.

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So yeah, these are two other characters I created but never got to develop to their fullest! Hope you guys like them, stay tuned for more concept art I never got to explore proper! and maybe I'll get around making more art of these two!

Cobolt and Ariana belong to me.