Even though this review won't probably be read, for those who will throw an eye on this episode... I'll say this:
This is easily the best episode of Yu-Gi-Oh ever. Why? Well... all this serie was filled with secrecy. What were those 4 dimensions? Why were only Yuya and Zuzu the only ones having copies? All in this series was building up towards this. And it was a mind-blowing episode. No one will ever be able to forsee what happens in this episode. The twist in this episode is just hands down phenomenal and made for one of the best anime episodes I've had the pleasure of seeing. I won't spoil everything. This episode is almost all about revelations, revelations which will be completed in the next episode, but the twist in this one is something that was never done in Yu-Gi-Oh ever before and it was that kind of game-changer the likes of episodes from shows like LOST, House MD, How I Met Your Mother, etc.
Too bad the show as a full went completely downhill from here and instead of becoming better it is just rushed and finished off in a very strange way with soo many holes and unanswered questions. But as an stand alone episode this will remain in my memory as the single best piece of Yu-Gi-Oh eever put to screen.