"Denpa-Teki Na Kanojo" is about crazy girls, crazy girls that don't make any sense.
Obviously, the main reason for their poor development is the small number of episodes. But, if they made a movie instead of an OVA, maybe they could develop something more believable. If you decide to add reason behind a Yandere character's actions, at least make them sound somewhat believable, otherwise just stick to their pure craziness and don't try to create empathy for those characters.
The psycho-girls in this Anime, as I already said, make no sense. They're focusing too much on shocking and graphic scenes - obviously, the only way to portray a messed up characters - and then, from nowhere, they begin to show how those psychos actually victims while sticking to the shock factors that make absolutely no sense.
Art (6/10) - Fair
Some characters look okay, some worse. I personally don't like the eyes art-style, it makes some characters look bad.
Sound (5/10) - Mediocre
I assume it's a low-budget Anime, so there's no OP and the sounds are generic.
Characters (4/10) - Decent
I pretty much summarized everything while reviewing the story. The only thing I can add is that the characters had a potential, it feels like they could be interesting characters if they were developed correctly.
Enjoyment (5/10) - Mediocre
Nothing interesting, yet not too boring - good to kill time.
Overall (5/10)
Maybe instead of misleading people with the title they actually should have made a sci-fi.
