Ok now what can I say...
The episode started off really well.
We got the main heroes flying in the Battle Pyramid, which is actually kind of cool. Then we got some awesome Snowpoint City Temple scenes, with Hunter J appearing but Regigigas proving quite the match for her (for the first time she actually appeared in an inferior position).
I also liked how the Regis were being controlled by Regigigas, and how when J was about to attack them they would jump in front of it to save it, even if it was after they had regained their senses.
I also loved how Regigigas itself got hold of Brandon, showing to us that it does have emotions, and its nature is not destructive.
I just wish Brandon would catch Regigigas at the point he actually weakened it (before stupid J interefered with Ariados).
Now, the thing that ruined the episode for me was how Brandon left the Regis at the Temple. I mean come on, they released a pokemon that belonged to a main character just 5 episodes ago (Ambipom in DP124), why do they have to kill us by having Brandon leaving his Regis behind? I honestly would have rather not watch the episode and gone directly from DP128 to DP130.
I just hope Brandon gets the Regis back someday, and the writers realising their mistake and actually bringing him back in order to show us he did get them back.
2/10 for this episode from me