Just buckle up to enjoy director Shinj Higuchi’s (“Shin Godzilla”) empty-headed thrill ride that’s edited so fast you won’t notice, mostly, the bumps along the way.

What makes “Bullet Train Explosion” so charming is that its creators don’t try to reinvent their chosen genre with this oversized, defiantly corny throwback.

“Bullet Train Explosion” feels like a blockbuster made for adults, where the priority is throwing challenges and complications at smart characters instead of sparking conflict with cheap narrative shortcuts and bad, even dumb choices.

While [Shinji] Higuchi is an adept enough filmmaker to deliver a high-stress and satisfyingly entertaining train movie, his latest loses sight of its own strengths and crashes before the titular train when it abandons its socio-political themes.