If you loved Batman Ninja, try Avengers Confidential: Black Widow & Punisher
A bridge between a film you've already seen and one most people haven't. Avengers Confidential: Black Widow & Punisher has roughly 3.6× fewer votes than Batman Ninja — 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.
What they share
Theyboth carry the neon soaked, playful, unhinged mood tags, and they sit in Action / Animation / Science Fiction territory. If that's the register that drew you to Batman Ninja, the second film will land in a comparable space — through a different lens.
What Avengers Confidential: Black Widow & Punisher is
You're a S.H.I.E.L.D. agent, tasked with stopping the Punisher after his latest vigilante hit. But his target reveals a massive conspiracy called Leviathan. The chase becomes a team-up. Director Kenichi Shimizu's anime style renders familiar Marvel faces with new energy. The film leaves one wondering about the ethics of covert operations.

