I've just seen it, and thought it was quite enjoyable. Still, I thought I read somewhere that this one was supposed to have some relevance to the plot of the rest of the series, and I'm left wondering what it will be. Warning: Spoilers inside! Also the bit of Kokuto's betrayal was a bit cliche, I wish that they had handled that differently. I loved his Hell Armour though, and I hope that it returns in the show.