Tetsujin 28-gou - Recommendations

Alt title: Gigantor

If you're looking for manga similar to Tetsujin 28-gou, you might like these titles.

Daikuu Maryuu Gaiking (Yoshihiro MORITOU)

Daikuu Maryuu Gaiking (Yoshihiro MORITOU)

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Daikuu Maryuu Gaiking (Takeshi KOSHIRO)

Daikuu Maryuu Gaiking (Takeshi KOSHIRO)

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Daikuu Maryuu Gaiking (Yuuji HOSOI)

Daikuu Maryuu Gaiking (Yuuji HOSOI)

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Daikuu Maryuu Gaiking

Daikuu Maryuu Gaiking

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Mazinger Z: Interval Peace

Mazinger Z: Interval Peace

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Dodekain

Dodekain

Earth is under attack. As giant monsters destroy the cities and alien warships swarm across the skies, 12-year-old Takuma Ippongi runs around the rubble trying to save himself and Koyori, his girlfriend. Takuma's character flaw that he's too hyper and has no self-control and always does everything too hard. When Koyori's sweater catches on fire, Takumi whacks her on the back to put it out, but he hits too hard and hurts her back. "I was just tryin' ta put out th' fires!" he apologizes. "You could've done it gently!" she says. "Why are you so reckless? You've got no self-control! You can't always use maximum force!"

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UFO Robo Grendizer

UFO Robo Grendizer

Years ago, after watching his family die at the hands of the Vegan empire, Duke Fleed managed to escape, stealing the powerful UFO Grendizer that the enemy used to destroy his planet in the process. Eventually ending up on Earth, the boy was adopted by Dr. Umon and given the name Daisuke, intent on living out the rest of his life in peace. However, when his father and the mecha pilot Kouji Kabuto realize that the Vegan empire has arrived at Earth to repeat history, Daisuke is forced back into the pilot's seat to save his new home. Alongside Kouji's flying saucer, can Daisuke and his Grendizer stop the fleet and save the world?

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Ride Back: Cannonball Run (Light Novel)

Ride Back: Cannonball Run (Light Novel)

In the future, an organization called the GGP has taken control of the world. Rin Ogata was a promising up-and-coming ballet dancer, but suffered a serious injury while dancing and decided to quit. Years later in college, she comes across a club building and soon finds herself intrigued by a transforming motorcycle-like robotic vehicle called a "Rideback". She soon finds that her unique ballet skills with balance and finesse make her a born natural on a Rideback. However, those same skills also get her into serious trouble with the government.

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Ariel (Light Novel)

Ariel (Light Novel)

Through a series of unfortunate events, Earth was suddenly attacked by Albert Houser, owner of the offworldly Gedo Corporation. To expel the beast-like invaders, one man created Ariel, a woman-shaped mecha designed to defend humankind! But this mecha required a special kind of pilot, and who better for the job than.. his granddaughters?! Now, to save the human race, Aya (who would rather be studying),  Mia (who would rather be playing sports) and Kazumi (who actually likes the job) must pilot the feminine Ariel, before Houser can complete his nefarious plan!

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ARIEL Bangai-hen (Light Novel)

ARIEL Bangai-hen (Light Novel)

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