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.7 out of 10.