Daichohen Doraemon

If you're looking for manga similar to Daichohen Doraemon, you might like these titles.

Twin Signal

Twin Signal

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.

I agree

Uchuu Kazoku Mekatoro

Uchuu Kazoku Mekatoro

I agree

Chin Arabian Night

Chin Arabian Night

The first story is a retelling of the story of Aladdin, with a couple of the names changed – but with a Hope/Crosby movie thrown in with a touch of Cinderella. The second story is yet another Ham Egg story, this time involving an abducted girl taken back to the ice age and a time machine that transports him into the future, when the human race is leaving to colonize Venus.

I agree

Hatsune Miku: Future Delivery - Little Asimov and the Green Thing Left Behind

Hatsune Miku: Future Delivery - Little Asimov and the Green Thing Left Behind

In the distant future, Asumi--a girl who has no clue to her memories but a drawing of a green-haired, ponytailed person--finds her only friend in Asimov, a battered old delivery robot. The strange companions travel the stars together in search of the mysterious ''Miku,'' only to learn the legendary idol has taken different forms on many different worlds! 

I agree

Ampersand

Ampersand

What would you do if one day, a time-traveling, hammer-wielding girl from the future suddenly appeared in your backyard searching for a mysterious object? Well, that's exactly what happens to Takayuki, who is a normal high school student. Join him on a crazy but sweet adventure that delves into the world of time travel and future beings as he discovers the true power the future beholds.

I agree

Metal Guardian Faust

Metal Guardian Faust

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!

I agree

Bocchi Hakase to Robot Shoujo no Zetsubou Teki Utopia

Bocchi Hakase to Robot Shoujo no Zetsubou Teki Utopia

I agree

Ashita no Tamago

Ashita no Tamago

Katsuya is a high school student with a secret crush. A stranger unexpectedly shows up, calls him "Grandfather" and begs for his help in saving his father - Katsuya's son. Together with Katsuya's childhood friend, and with Katsuya's secret crush, the four set out to save Katsuya's son

I agree

Heart Gear

Heart Gear

In a ruined world, a human girl, Lu, and a droid, Zet, live a humble life. Then one day, they encounter a mysterious new droid, Chrome... Now all three of them live together like a family, but then…

I agree

AI no Idenshi

AI no Idenshi

Humanity's dream... Crystal humanoid technology. They have 'illnesses' just like humans but the treatments options are quite different. The troubled AI's band together, and the new doctor at the facility, Sudou, bears witness.

I agree