If Tsukasa and Marvelous were able to take down (or transport to the dimensional void) Super Sentai teams and Kamen Riders with ease (Onore, haxxors!), why did they have a long drawn out fight with the Go-Busters and Fourze respectively (In-universe I mean, of course they get special attention because they were the current heroes). Hell, we didn't even see the Go-Busters and Fourze get sent to the dimensional void, we last saw them running away from blaster fire from the respective evil fortresses (Crisis Fortress and Gigant Horse). Then they shown up with Meteor (who was sent to the void by Marvelous) for the big battle. Just what were they doing?
Where the hell was Navi during all this, he can't even be seen when Joe and Don are with Kaito and Hina on the Gokai Galleon?
Okay, so the Zangyack flagship Gigant Horse came back, and it combined with the Crisis Fortress to form the Big Machine which was destroyed by Rocket Drill Go-Buster Oh. But then there was that fleet of Zangyack battleships which attacked the Kamen Rider Club on the Moon and the Earth of Kamen Rider aka Fourzeland. We never see what happened to them.
For the big battle, we've got all the primary riders up to Fourze, with the Neo-Heisei secondary riders (Accel, Birth and Birth Prototype, and Meteor). But then there was a flashback of Marvelous sending a team of riders to the rift which included four early Heisei secondary riders (G3, Knight, Zolda, and Gatack) but they don't reappear for the final battle. On the Sentai side, we see Tsukasa send the Gekirangers (along with the Carrangers and Gaorangers), the original three Gekirangers with Geki Violet and Geki Chopper. But only the three Gekirangers fight in the big battle.
This whole movie is chock-full of head-scratchers. Fist off, how did Marvelous & Tsukasa find, let alone utilize, this dimensional rift. 2. Where the hell are the Hikari Studio gang, you'd think that Natsumikan would be flinging laughter pressure points left and right.
How did Dai-Shocker return? How was Dai-Zangyack formed? How did Marvelous and Tsukasa learn of their plan? And how did they become their leaders, did they just walk up to them and say "hey, want to have an evil overlord?"
What happened to Long? They couldn't have killed him, but I didn't see any magic spheres to seal him into...
Where were all of the Sixth Rangers and Extra Heroes? Gai is the only Sixth Ranger even in the movies!