Nekketsu Uchuujin - Recommendations

Alt title: Hot-Blooded Alien

If you're looking for anime similar to Nekketsu Uchuujin, you might like these titles.

Hoshi no Ko Chobin

Hoshi no Ko Chobin

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Nanako SOS

Nanako SOS

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Urusei Yatsura Movie 4: Lum The Forever

Urusei Yatsura Movie 4: Lum The Forever

The gang from Tomobiki has dealt with a lot of strange things in the past, but they may finally have met their match! They have been called to Mendou’s estate to create an independent film with a giant cherry tree as a background, but as the work begins, strange things begin to occur. Everyone’s memory begins to fade, Lum starts to lose her powers, and for the first time ever Lum’s Stormtroopers are looking at other women! As the day continues, they begin to question the meaning of their lives, as they try to get to the bottom of what is going on in their town.

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The World of Narue

The World of Narue

Ever wanted to see what it would be like if aliens coexisted with humans? Now you can, through the adventures of Narue Nanase. She's an alien girl living with her father, placed on Earth to keep an eye on humanity and prevent them from having direct contact with aliens, a la Men in Black. However, the situation changes when Narue meets Kazuto Iizuka, a boy at her school, after saving him from an evil alien. Soon, they fall in love and become unseparable.

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Level E

Level E

Yukitaka has just left Tokyo, eager to transfer to Kisaragi High where he's been recruited to play baseball. However, upon entering his new apartment, the boy is met by a man with long blonde hair who claims to be… an alien?! After initially scoffing at the notion, Yukitaka discovers that the alien – Ouji – is for real, has amnesia and, what's worse, now wants to live with him in his apartment. The fact that scientists and mysterious guys in black suits are after Ouji becomes the least of Yukitaka's problems as his new guest turns out to be more than a handful to handle!

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Urusei Yatsura: The Obstacle Course Swim Meet

Urusei Yatsura: The Obstacle Course Swim Meet

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Tondemo Senshi Muteking

Tondemo Senshi Muteking

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Uchurei!

Uchurei!

 The "summer supernatural teen comedy" revolves around an ordinary high school boy named Takashi who ends up living with a space alien's spirit after a strange incident. He names the creature "Uchurei" and plans to keep it as a pet, but becomes possessed by it.

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DearS: Is It a Golden Ball?

DearS: Is It a Golden Ball?

Miu, winning a lottery, invites everyone to go to a newly opened bath house.

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Tenchi Muyo! Mihoshi Special

Tenchi Muyo! Mihoshi Special

Mihoshi may have fallen from the stars, but when she arrived at Earth and the Masaki Shrine she left behind her a very different life. After defeating Kagato, Tenchi, Sasami, Ayeka, Washu and Ryo-Ohki are taking a much needed break - but not for long! Mihoshi tells tales of her time with the Galaxy Police, including the introduction of her former partner, Kiyone Makibi. Whether it's dealing with a kidnapped Space Policeman, a gigantic roach motel or the end of the universe as we know it, Mihoshi and Kiyone are on the job! Who knows - they might even run into a few magical surprises along the way!

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