Fridge / Heisei Rider vs. Showa Rider: Kamen Rider Taisen feat. Super Sentai

Fridge Brilliance:

• Kamen Rider Decade ends up borrowing a Lock Vehicle because they apparently forgot that he has his own bike — or did Diend take it, like in the net movies?
• While the reasoning the Showa Riders use to fight the Heisei Riders is flimsy at best, it does make a lot of sense that in order for #1's plan to revive the fallen Riders to work, he needed something that can use the Rider Lockseeds to make sure that they could come back to foil Badan's plan, and since Kouta has a Sengoku Driver (that draws power from Lockseeds), he had to make sure that Kouta was the last Rider standing in their skirmish so that ZX can use Kouta as a conduit to bring everyone back.
• Some of the matchups in the actual final battle can invoke this:
  • Kamen Rider Wizard vs. Kamen Rider #2 — Gaim's predecessor against #1's successor.
  • Kamen Rider Fourze vs. Riderman — The 40th anniversary Rider for the 4th Rider ever, both having the power of equipping various weapons on their limbs. And remember who Gentaro's best friend was named for?
  • Kamen Rider Decade vs. Kamen Rider ZX — both milestone celebrations of course.
  • Kamen Rider Den-O vs. Kamen Rider Shin — not only the demonic appearances, but an unborn child is a plot point at the end of both their stories.
  • Kamen Rider Kabuto vs. Kamen Rider: Skyrider — Being the Ace, it's only natural that Kabuto would go for a rematch with the Rider that took him down in the beginning.
  • Kamen Rider Hibiki vs. Kamen Rider Amazon — not only completely organic Riders, but both fell prey to Executive Meddling in their time.
  • Kamen Rider Blade vs. Kamen Rider Stronger — Stronger already faced one beetle Rider (appropriately enough, the rhinoceros beetle one) in the Cold Open, naturally it's the other's turn, and this one has lightning power to match.
    • Then there's the fact that this isn't the first time Stronger and Blade have fought, they were previously matched in the Rider Battle tournament during All Riders vs. Dai-Shocker five years ago.
  • Kamen Rider Ryuki vs. Kamen Rider Super-1 — the Chinese-styled one vs the one who actually learned Chinese martial arts.
  • Kamen Rider Kuuga and Kamen Rider Agito vs. Kamen Rider ZO and Kamen Rider J — both pairs were conceptualised as a Shared Universe at first. And in J's case, he's fought a different Agito before.
• Haruto siding with the Showa Riders does make sense given their reasoning as to why they're fighting the Heisei Riders. After all, he and a lot of other people had to suffer a man's grief for his lost daughter and attempts to bring her back to life. He just didn't want it to happen again.
• The (pre-existing) DenLiner turning into ToQ-Oh's legs is particularly awkward, not just in-universe, but there's a whole toyline of past Red senshi mecha as Resshas, all of which form the head the same way. Well, remember what Finishing Move Kamen Riders are best known for?
• It would make sense for Gaim's Super Hero Taisen movie to carry the same theme he had: juniors vs. adults.

Fridge Horror:

• As Ichigo had pointed out, the depression over the deaths of friends and loved ones is what caused Badan to return. While he singles out the Heisei Riders, it does make sense, as they do have lost friends and loved ones, the most recent by that point having found out he killed his friend by the time the movie came out. However the same can be held true to the Showa Riders. Famous examples including Nobuhiko and Misaki, and as shown in the first Superhero Taisen, they haven't entirely moved on from it (Kotaro trying to coax the former into becoming good). Could it be that Badan was drawing from them as well, but they didn't know it because they believed they've moved on from it?

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