What bugged me the most, however, was how easy it was for Go and Gary to catch Regieleki and Regidrago. During the battle they never really managed to land a significant hit and then all that was necessary to take down those two legendaries was a Twister-boostered double attack? Seriously? It was the last trail mission and I expected it to be a tough battle, but the writers made it way too easy for Go an Gary this time if you ask me.
Both Gary and Go lost their first two pokemon, Flygon and Hatterene, and won using their starters (their strongest pokemon), and combining fire/water attacks. The Regi's also probably weren't KO'd, but knocked against the wall. The only odd thing is they use normal pokeballs against them while the Project Mew trainer had the old Hoenn Regi's in Ultra Balls. If anything I thought the battle went very well.
Second, there was that unanswered question concerning the uniqueness of legendaries again. If the Regis are unique in the Pokemon world, what about Brandon's Regis then? But if there are several versions of Regirock, Regice and Registeel, should they still be considered legendaries? I mean, it would seem pretty strange if there suddenly were two Ho-ohs or two Arceus. So, is there something like second-rate legendaries (the birds, dogs, regis and so on) which can exist several times? It's a shame those questions will probably never be answered.
It's pretty obvious these are not the same Regi's that Brandon had. There were also the set of Regi's in Movie 8 which seemed a lot more powerful than these as well. Brandon's were left at Snowpoint temple in DP, but when the Project Mew trainers went after them they found different Regi's in different areas.