Ahh, Mars of Destruction. Something you must see to believe. Something you wouldn't ever believe to be possible outside of the realm of LEGEND. Something your mind will initially refuse to register as true, and then shiver with a flow of many different and conflicting emotions. And you totally should watch it.
What little can be understood of the plot is: some starship somehow went "kaboom" while delivering something from Mars, then some big ugly things called "Ancients" appear to be attacking randomly in Japan and there are some (probably underage, and seemingly retarded) girls and a lad in a cool suit fighting them. Everything is told so confusingly and superficially and with so many clichés that at no point will you care for the story. Not a single element has not been already seen a billion times. It's not only stupid and confusing, but at times even contradictory, and you can see that it actually takes itself seriously by trying to be too many things for a low-budget 20-minute OVA and not even once showing any tongue-in-cheek attidude. The cornerstone to understand what masterpiece of clumsiness we're in front of is actually the finale. I'm not going to spoil it, because it's a key element to fully experience how bad this thing is, I'll just say that it will give you one of three reactions: you will burst out laughing, burst out crying, or check what the hell was in that drink you just had because such a cheap, lame and out-of-the-blue plot twist can't possibly be anything but a result of mental alteration. Needless to say, none was the inteded effect. As the revelation approaches, you can basically see popping up on screen a roulette spinning between "I am your father!", "It was Earth all along!", "You are one of us too!", "WE are the Earthlings!" and "It was his sled!".I'm still wondering if they thought they were smart or touching.
I read that it's supposed to be a tie-in for an action / dating sim Playstation2 videogame, but still it's not enough of an excuse.
Calling these characters "bidimensional" would mean giving them one or two dimensions more than what they have. No, I would go as far as saying that THERE ARE NO CHARACTERS. Basically only two or three of them are named, nobody at all has even a hint of any personality (AT ALL!), and the only scene that could be considered character exploration (through some inhuman stretch of the term) is a 20-second flashback dialogue taken bodily from the first episode of Evangelion. If that was supposed to make us sympathise with him, it failed pretty hard. Actually, giving a crap about any single one of the characters is basically impossible: so flat and non-existent are their personalities, and so stupid are their actions, that you'll either hate them or simply not notice they're there at all. Again, it's a tie-in for a game, so I don't know how those characters are developed there, but this is the impression received from the OVA alone.
This is probably the best aspect of the anime, and this says a lot. The character design is dull, the animations are cheap and terrible, and some shots will make you burst out into laughter. Unintentionally, of course. Still I have to admit, the design of the protagonist's suit is pretty badass.
There is little to no soundtrack, but after hearing what little there is, you wish there was none at all. Because it's pretty painful to hear short extracts of beautiful pieces of classical music (like Wagner's "Ride of the Valkyries", Rossini's ouverture from "The barber of Seville" or Beethoven's "Moonlight sonata") used absolutely randomly. Used like they are, in no way do they help conveying any feeling, on the contrary they distract from the scene, expecially since each one of them cuts abruptly followed immediatly by the next one.
You know when, hearing a performance, you can visualise the face of the voice actor in a proud pose with the caption "And not a single fuck was given that day" above them? That's this anime. The voice actors are not even TRYING to convey any emotion, they just... didn't give a damn. Again, there's one or two times where you'll burst out laughing.
Overall? Overall, you MUST see this shit. Everything about this OVA is so awful, so unbelievably stupid, cheap, and hastily put together, that you MUST try it out. It's something along the lines of those movies, like The room or Turkish Rambo or Avatar, that are so bad and full of the stupidest clichès, that watching them with a couple of friends and some alcoholic beverage becomes an enjoyable and ultimately unforgettable experienceof laughter. If the voice actors had been more over-the-top and hammy instead of flat and boring, it could have been a damn masterpiece.