If you loved Battle at Big Rock, try Heisei Rider vs. Showa Rider: Kamen Rider Wars feat. Super Sentai
A bridge between a film you've already seen and one most people haven't. Heisei Rider vs. Showa Rider: Kamen Rider Wars feat. Super Sentai has roughly 9.3× fewer votes than Battle at Big Rock — it's a deeper cut, not a mainstream recommendation. Here's what they share, and what the second one does that the first one doesn't.

Battle at Big Rock

Heisei Rider vs. Showa Rider: Kamen Rider Wars feat. Super Sentai
What they share
Theysit in Action / Adventure / Science Fiction territory. If that's the register that drew you to Battle at Big Rock, the second film will land in a comparable space — through a different lens.
What Heisei Rider vs. Showa Rider: Kamen Rider Wars feat. Super Sentai is
You're Kamen Rider Gaim, fighting Badan's scheme to invert the world. You vow to protect a boy with similar powers. But past Riders suddenly clash, split along Showa and Heisei lines. Shibasaki's film lacks subtlety, yet the action sequences deliver. It leaves one pondering franchise fatigue.