Compared to the previous episodes, this one is better honestly. I felt like the animation from the 1st one seems a little low-budgeted. The OP animations seems keep changing one by one though. Overall, a decent episode. Next one will be a real deal to the whole series. So are you ready for something endless soon? SHAFT, please do that properly!
Well, the anime version of the song Mekakushi Code or Blindfold Code in English is performed by Koneko Yasagure, while the original one was sung by Hatsune Miku: