- Alternate Character Interpretation: The Meiji Government assassinates Shishio to cover their less than savory actions as in the original, however when discussing Shishio Okubo notes that Shishio's "Survival of the Fittest" mantra was what made him deadly. In this adaptation of the story was Shishio's assassination at least in part motivated by disposing of a potential insurrectionist before he had a chance to rebel?
- Harsher in Hindsight: The title itself becomes this in the wake of the arson of Kyoto Animation that killed thirty four and injured around that same number and whose perpetrator is rumored to be out for revenge.
- Hilarious in Hindsight: Ayumi Beppu, previously MagiPink, had a cameo in Cho Ninja Tai Inazuma as the star of a failed pilot that was junked by the studio in favor of the titular ninja toku. Now Ayumi gets to be a proper ninja herself, as part of the Oniwabanshu.
YMMV / Rurouni Kenshin: Kyoto Inferno