So I watched it again..... And I still think it's terrible -_-
The Bad
-No mentioned of any of the Showa-era Bujin Riders.
This movie had nothing aside from Kamen Rider though...It seems that it's an ongoing trend that Tokusatsu from other series makes the movie suck (though, are at least some exceptions).
We didn't see the arena itself, but we did see the song they played there alongside the Team Pop Up members.I do say it's probably AU, as where the heck was that Arena before? I mean, if it's canon, why don't we get to see at least one fight there. Although, maybe that's just my personal like for gladiatorial-style fights talking.