- Country: Japan
- Genres: Action, Animation, Comedy
- Release: 2008-10-03
- Director: N/A
- Writers: N/A
- Language: Japanese
- Stars: Tetsuya Kakihara , Yuichi Nakamura , Mamiko Noto , Miyuki Sawashiro , Josh Grelle , Michele Specht , Alexis Tipton , Rie Kugimiya , Jun Fukuyama , Jôji Nakata , Jôji Nakata
- Runtime: 23 min
- Awards: N/A
- AKA: 鉄のラインバレル (Japan) , Kurogane no rainbareru , Linebarrels of Iron: OVA (Australia) , Linebarrels of Iron
- Plot: Kouichi dreams of being a hero, but in reality, he's a punching bag for every bully on the block. His life flatlines when the mysteriously naked Emi crash lands on his pitiful existence, thrusting Kouichi into the middle of an intergalactic showdown between rival races of self-regenerating Machinas. Through his death-bed partnership with the Linebarrel mecha, Kouichi gains the strength to stand up to his tormentors and crush the alien invasion force that's determined to conquer Earth. There's just one problem. All this newfound power and special attention from nearly-naked babes is turning Kouichi into a jerk. His friends can't stand him, he makes his dream girl sick, and those aliens want to kill him extra dead! Kouichi may have the mechanized muscle to save the world, but he has much to learn about being a true "Hero of Justice".
- IMDB:tt1323829
Linebarrels of Iron Cast · · · ALL
Mamiko Noto
Emi Kizaki
Miyuki Sawashiro
Satoru Yamashita
Tetsuya Kakihara
Kōichi Hayase
Rie Kugimiya
Izuna Endō
Kana Ueda
Shizuna Endō
Aya Hirano
Miu Kujo
Jun Fukuyama
Hisataka Katō
Chiwa Saito
Rachel Calvin
Emi Shinohara
Yurianne Faithful
Go Shinomiya
Hideaki Yajima
Hirofumi Nojima
Sobi Nakajima
Hisanori Koyatsu
Goro Maki
Jun Konno
Makoto Doumyouji
Noriko Shitaya
Risako Niiyama
Show Hayami
Eiji Kiriyama
Tetsu Inada
Takuro Sawatari
Yuichi Nakamura
Reiji Moritsugu
Daisuke Sakaguchi
Riku Ousei