Kurogane no Linebarrels

The main character are voiced by the same VA for both shows. For a little boy who doesn't understands things at first matures and becomes a hero in the end. Both characters are fighting the same cause: to save the world. 

Weak willed and neutral student protagonist died at first episode but with returns with mysterious powers (not exactly supernatural) and mastery for a similar designed melee-type over technology mech. At beginning of first episode, protagonist's only two real friends: His childhood girlfirlend and a big brother figure. Mech have bond between his user and can be operatable for limited time. Additionally, when re-activating Valvrave is very similar Linebarrels. (On re-activating process, Valvrave and Linebarrel does color changing) Valvrave Valvrave's 666 Mode and Linebarrel's Overdrive Mode is very similar (except aura's color difference) and both units uses dual Katana. 

hmm... simply put, the plots are similar in that the main characters are on the minority side ( linebarrels in the later half). they also like the woman who use the mecha first. both mechas used are the best in the series. also for themes they both have romance, comedy,action, and drama. 

Both have main characters that gain power and go nuts with it. Both classic examples of ultimate power corrupts absolutely. Light and Kouichi both have that evil laugh.  

Pretty much the same predictable plotlines from beginning to end though with some deviations to differ the two shows, however SRW has way more action than that of Kurogane 

They are both about a boy who suddenly gets thrown into a world of battles and big mecha's. Althought in Isekai the protagonist actually gets thrown into another world. From here the series split appart as Kurogane focuses on mecha's and battles Isekai is more widly spread and shows alot of different stuff. For example it has more harem, shows how the protagonist manages to fit into his role in the new world and have lots of happenings that has no conection to mecha what so ever. But still, if you like kurogane you probably wont regret seeing Isekai and the other way around. At least I didn't. 

Kurogane no Linebarrels has a lot of quirky characters and randy humor; beware the boobies in this anime! The Machinas are also semi-organic mecha. Likewise, Maze: Bakunetsu Jikuu is an anime also full of demi-armor (mecha that bonds to their pilots internally), a zany cast, and sexual innuendo. In both anime, the fight scenes are only riveting because the characters are so endearing and fun to watch! 

In each anime, the protagonist is an immature and loud-mouthed, yet well-meaning, young boy who grows up and learns to view the world less selfishly after a mysterious girl happens into his life (Kouichi encounters Emi, while Garrod is hired to rescue Tifa). And in both instances, the girls bestow upon them an awesome mobile armor (Kouichi is made a co-Factor of the Linebarrel, and Tifa shows Garrod where to find the long-forgotten Gundam X). Both anime also focus a lot on the characters, and not so much the political warfare of the battling mecha.  

Both are "exercises in unlikeable leads," starring teenagers with massive hero complexes as their main characters, and forcing them to reevaulate their views on heroism and justice due to the events that occur. Linebarrels is more comedic and has ecchi elements, while Revisions is more chaotic and dramatic, but both have a fair amount of action and can get pretty dark at times 

Both main characters have been bullied by the world and have friends to save them when they are in trouble. The friends are really nice, but the main character sees it as pity and gets upset with them. In both anime the main character goes from weak to strong and encounters a beautiful woman as well in the process. 

The usage of mecha and science fiction warfare is present in both series. Vandread and Kurogane no Linebarrels both plays the usage of these themes throughout episodes starring the main protagonist. The main protagonist in both series are hotheaded but have a sense of justice and pride. They meet a strange girl and later forms a special bond with theme. Both series' main protagonist attracts the attention of several female characters throughout the series. Both series has a more complicated plot as the episodes progresses. Both series has emotional moments that is mixed in with drama, comedy, and romance later on.  

In both series, the themes of mecha action comes into play involving the many characters of the series. The main characters are in fact students from an academy. Both series features the usage of mecha warfare where the pilots are also identified as being special. In particular, the main character from both series seems to hold special origins. There is comedy, drama, and action involved in both series that also incorporates the science fiction theme.  

In some ways, these two series are a bit similar as I'm watching them. Both series involves the usage of mecha and military weaponry in a futuristic like world. Both series' main protagonist are self confident in their abilities. Both series' main female protagonist has a dark past that they are not welling to share with others easily. Both series has a lot of action, drama, some comedy, and also hints of romance.  

Art style is almost the same. Both have mecha and a lot of action. 

Both are mecha vs aliens. Similar setting from academy. 

INVADER FROM ANOTHER WORLD Similar Story : In both anime "parallel world" is exist People from World A come to World B as invaders Later people from world B make mechanical weapon units based from technology world A to counter back Similar Theme : Main story also feat theme like "Hero of Justice", "Conquer World", "Betrayer", "Politic" & "Harem Love" can be found in both anime Different : + Kurogane set in modern day, Nobunaga set in japan sengoku era(mix with middle age european setting) 

I started watching Linebarrels and all i could think about was how I've seen most of it already in Dual Parallel! Trouble. just to note a few similarities (there are loads) the mechs in use are reverse engineered from Original mech that appeared from another dimension/world. the most powerfull mech is an Original thats piloted by the main character, has unmatched strength and power output, can be summoned by the user, has the ablity to heal, can teleport between dimensions/space and are the only things with a finishing move powerfull enough to defeat the big bad at the end. main lead is a school boy that is soft and clumsy yet has all the female characters swooning over him. The orginisations they join are similar as in they are allies with the UN, then not... and the commander is a bit nutty, causes trouble and has a female colleague thats always having to whack some sense into him. Incidently the lead is beaten up by his love interests... alot. I think I'll stop here because the similarities just go on and on.  read more 

Two organisazions fight each other with mechas extraterrestrials 

Boy meets supernatural girl for pilonting a mecha 

They are both mecha animes and the people are choosen to piolet them (In different ways). And the city in Kurogane is just like the island (During episode 18). Though Kurogane no Linebarrels isn't as serious as Sokuyuu no Fafner but its a mix :) 

In both anime the main character meets a strange girl who passes a strange power to the boy.. with that power their life changes.. 

Random teenager finds a more random mecha, and somehow random teenager becomes best pilot ever :P 

Both have the same animation, and the characters are almost inter change able. If you liked Kurogane no Linebarrels i highly recommend s.CRY.ed. Lots of action in both as well as a mix of comedy and passionate moments.  

in linebarrels the main char gets hit by a giant mech which gives him powers n the ability to control it, while in xam'd the main char is involved in a explosion where a light goes into his arm n he transforms into a xam'd...both of them have some similarities as you get deeper into each...both of them are considered no longer human 

Both are shows that are, at once, lampooning their respective genres as well as embracing them. The humor and action is less uneven in Kurogane no Linebarrels, however.  

Boy meets girl. Boy gets giant robot. Girl and robot power tied together. However it kinda of diverts from there but a similar concept. 

Both of this series feature stunning 2D+3D graphics and of course mecha mech mecha!!! 

two ordinary school kids getting power 

Both anime are great mecha anime. Both anime have that love aspect that makes the mecha more interesting. Just like in Full Metal Panic, the main character in Kurogane, Hayase Kouichi, has many girls that like him. Kurogane no Linebarrels draws you in. Kurogane fighting scenes are excellent. If you liked Full Metal Panic then you will like Kurogane no Linebarrels.