As for the characters, they're all grade school children but they all have their own unique style and look. For instance, one kid has earrings big enough to have a kanji symbol on it, another has a mowhawk, etc. Regardless these kids arent your typical type of kids but I don't think this show is aimed toward a young audience considering the graphic nature of this OVA. Well its not a graphic violence but more of a psycho thriller. Which is pretty unique since you dont see these types of anime being produced as much. But back to the characters, they all wear fox masks as a requirement to play the game. I'm assuming this is a move to save money on animation, or it can be to increase the scare factor of the show. Which brings me to the art and animation of the show.
Apparently it took the production team 6 months to produce this one episode, and you can see that most of their work was put into the art and animation of this show. It looks like most of the show was hand drawn but the characters are a mix of cell-shading and hand drawn animation. As you well know this combination usually looks pretty bad, but surprisingly they managed to make it look really REALLy good in this show. The antagonists are all vibrant and oozing evil, neon lights all have a soft neon glow, posters on abandoned walls are written out with care, and even heaps of trash and debris have their own beauty to them. The detail to the background artwork is just insane it appears they put in just as much work to the backgrounds as they did to the characters.
As for the sound effects and voice acting, one turns out VERY EXCELLENT and the other turns out VERY mediocre. The sound effects are top notch and set the mood all perfectly. Almost a little too perfect. Still air can be heard, buzzing of neon lights, even the dilapidated buildings that make the setting all creak and crack with antique clarity. At times, the sound will actually make you jump if you get too into the show. On the other hand, the voice acting is mediocre at best. Most of the time they don't even speak, they mostly run and scream in fear. Two of the kids don't even speak at all. But where there is no dialog, they're usually some sort of suspenseful, creepy, or downright ominous song brooding over the show.
As usual, my review is starting to becoming longer than the whole show itself. Overall, the show is a great psychological thriller who is very open minded to unique shows. This show is obviously full of holes and inconsistencies, but the whole experience will still be exciting every time i watch it. And I've watched it 4 times already :)
