The evil organization Shocker alters history by sending their newest creation, Kamen Rider 3, to defeat Kamen Riders 1 and 2 back in 1973. In the alternate present, Shocker is more powerful than ever, and most of the Kamen Riders are now either imprisoned or brainwashed to work for them. One of such brainwashed Riders is Shinnosuke Tomari who thanks to his partner Kiriko Shijima, remembers the truth and joins forces with the remaining Kamen Riders who are still at large to make a stand against Shocker and put history back on its proper course.
Directed by: Takayuki Shibasaki
. Starring: Ryoma Takeuchi
, Rio Uchida
, Yû Inaba
, Rei Yoshii
, Kenta Hamano
, Taira Imata
, Tsurutarô Kataoka
, Yûichi Nakamura
, Kento Handa
, Hironari Amano
, Tetsuo Kurata
, Shunsuke Nishikawa
, Gaku Matsumoto
I've already seen the movie, "Let's Go Kamen Riders!" so I'm familiar with the actual "plot" of this movie since they're literally the same thing. But, compared to "Let's Go Kamen Riders!", it's basically enjoyable to watch, if you like the idea of "wacky races" in the final act of a movie. But, I'm not gonna say that it's among the "Best" or "Worst" Tokusatsu cinematic crossovers. It's more like on the "Meh!" side for me.
Other than that, I actually liked the net-movies, "Kamen Rider #4" a lot more though, since they've established that these Super Hero Taisen movies are non-cannon.
The only gripe I've had is the final battle between the Great Leader of Shocker in his final form and the Ninningers and Drive piloting the Shurikenjin.
Overall, I thought Super Hero Taisen GP: Kamen Rider #3 was pretty good, but not all that great.
Review by xgray-03873 from the Internet Movie Database.