If you're looking for manga similar to Ichigeki Sacchu HoiHoi-san, you might like these titles.
Wahhaman is a special robot soldier built ten thousand years ago by the Atlanteans. Found and dug up in present-day Tokyo, he doesn't remember anything, due to a nasty knock to the head he received at some point.
When an industrial robot named Monroe begins to work at his father’s factory, Satoru is fascinated. As he and his friend Marin spend more time with Monroe, they start to suspect there’s much more to the machine than anyone else realizes. But neither children nor adults are prepared for Monroe’s violent awakening into consciousness.
A secret social experiment is led by two Japanese engineers, having an android every move, expression and decision decided through a majority vote from a collective of ca. 3000 randomly chosen people. The vote system offers the opportunity to any member of the collective to set forward his/her proposition. The 3 most proposed actions as well as two propositions made only once are submitted to the majority vote.Rules and systems have been set to ensure the dynamism of that community, and to prevent identification of people and places where the android evolves in modern-day Japan. And so the Dēmokratía android came to life.
For three years Akira has been saving up for a computer. When a model 9821 goes on sale he runs to the store only to find it sold out in five minutes. Discouraged, walking home he discovers a man in an alley who happens to have the computer he was looking for. Excited, he buys the computer and runs home only to find that he didn’t purchase a 9821 but a 2198, a super advanced biomechanical computer girl named Mimi.
Takuma is a single guy who does nothing but go to work and come home. Too tired to do chores, he decides to get a robot to cook and keep house. “Mina-chan” is such a good housekeeper, Takuma jokes that she should become his wife. Mina takes Takuma’s joke seriously, and slowly the two start doing more things together, like having a picnic outside. As time goes by, Takuma starts to fall for Mina, but can a human and a robot ever have an equal, loving relationship?
An omnibus of stories about robots with hearts, such as a pet girl robot whose owner has gotten tired of her and a caretaker robot who gets freedom through a human's last will and testament.
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!