If you're looking for manga similar to Cybot Robotchi, you might like these titles.
Signal, a robot companion built for Nobuhiko, is attacked by Pulse, one the its creator's previous prototypes. Reprogrammed by Dr. Otoi's mysterious rival, Pulse is loaded down with weapons and sent on a mission by Otoi: steal the most recent robot technology, and obliterate anything that gets in his way.
It's said that Thomas Edison stuffed all of his knowledge into his final invention, a screw. Presently, said screw is buried inside the head of Matsunaka Spica, a high-school girl!!! When Matsunaka Spica's thoughts rise to a high enough level, she can create amazing inventions that would normally be impossible to construct!
This offbeat Japanese manga tells the action-packed tale of the Cyber 7, a team of biologically enginered robot protectors who attempt to save humanity from a threat beyond imagination.
When schoolgirl Rushiha is suddenly attached by a humanoid robot, a guardian robot named Faust appears out of the blue to rescue her! And why does he insist on staying on as her permanent bodyguard? The answers to these questions lead the unlikely pair on a quest to rescue her scientist father from the clutches of his own creations!
Gifuko is a robot in the form of a cute little girl. Unlike other robots, Gifuko is able to feel emotions and learn new ones by experiencing them. She lives with a professor who always has a bear mask on and goes on daily adventures outside to learn new emotions. As she becomes friends with all the people in her town, she is able to sync up their emotions with hers and downloads it into her own data file. With each new friend she makes and every connection Gifuko makes with them, she becomes closer to becoming human.
For most people, having one’s own mecha sounds like a dream come true. So when Eiji’s father builds him his own girl mecha to help around the house, he thinks life is about to take a turn down easy street. Unfortunately for Eiji, his eccentric father isn’t about to make it that easy, and his new mecha girl seems to have a mind of her own – one that doesn’t necessarily take to doing what she’s told. Will Akira-chan prove to help Eiji’s life, make it more complicated, or a little bit of both?
In the year 20XX, bugs have become immune to all forms of insecticide. In order to deal with this crisis, the Japanese company Mars Pharmaceuticals has created HoiHoi-san, a super-cute 11.5 cm tall insect exterminator robot. With five color variations, a massive line-up of interchangeable weapons and many other accessories, HoiHoi-san has gained many fans. But when rival company Kinryu releases their own interceptor doll, HoiHoi-san has more to worry about than market dominance, as these new 'Combat-san' units aren't content with just exterminating insects...