This movie is without a doubt, one of the worst, and I mean, the worst Kamen Rider movie that I've ever seen in my entire life. Not just as a fan of Tokusatsu, but a member of the human race. All these actors that were brought back together to reprise their roles, shouldn't have taken this offer or paychecks to even be in this movie. All the pacing was wrong, the fight choreography and stunt work was bad, the writing and directing was just terrible.
I did not want to think of Hiroshi Fujioka's Takeshi HongoKamen Rider #1 as a villain from this movie, I wanted to remember him as a hero. Like in the movie, "Kamen Rider #1 (2016)". That was good movie, despite it flaws. But this?! this is just an embarrassment. Not only that....they immediately altered the events of Kamen Rider 555Faiz in this movie to make me feel sorry for the absolute most hated character in the show?! pfft! Get the Hell out of here with that excuse of bad writing.
Overall, I did not like Kamen Rider Taisen, it was too painful for me to watch and I'd highly recommend watching better Kamen Rider movies like "Paradise Lost", "The Missing Ace" or even "Movie Taisen Megamax". I don't ever want to think about or revisit this movie ever again.
Review by xgray-03873 from the Internet Movie Database.