If you loved Kazuo Umezu's Horror Theater: Death Make, try Battle Royale High School
A bridge between a film you've already seen and one most people haven't. Here's what they share, and what the second one does that the first one doesn't.
You already loved

Kazuo Umezu's Horror Theater: Death Make
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Battle Royale High School
What they share
Theysit in Fantasy / Horror territory. If that's the register that drew you to Kazuo Umezu's Horror Theater: Death Make, the second film will land in a comparable space — through a different lens.
What Battle Royale High School is
Rooftop dojo. Bell clang. Empty black gi traded for a contract, a teen becomes king of monsters. His old school: a portal for samurai vs. space cops vs. actual devils. Itano's OVA has great cuts, but some of the story beats feel very familiar now.