If you loved Rape Zombie: Lust of the Dead 3, try Stacy: Attack of the Schoolgirl Zombies
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

Rape Zombie: Lust of the Dead 3
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Stacy: Attack of the Schoolgirl Zombies
What they share
Both films are directed by Naoyuki Tomomatsu, and they both carry the unhinged mood tag, and they sit in Comedy / Horror territory. If that's the register that drew you to Rape Zombie: Lust of the Dead 3, the second film will land in a comparable space — through a different lens.
unhinged
What Stacy: Attack of the Schoolgirl Zombies is
Tokyo suburbs summer air thick with cicada hum. Teen girls infected become violent. A Naoyuki Tomomatsu zombie comedy.