A few of Red Death's lines were derived of quotes from Batman in various forms of media, such as comics, TV shows and movies:
- "I am vengeance. I am the knight."
- "Criminals. A superstitious and cowardly lot."
- "Everybody's got their limits. I ignore mine."
- "You wanna get nuts? C'mon, let's get nuts!"
The title is a play on Edgar Allan Poe's 1842 short story "The Masque of the Red Death." Lines from this story were recited by Keith/Goldface in Rogues of War (2023).
Following the Crisis it's made clear that there is actually a new multiverse, but only the audience is aware of this--not the heroes, who believe that they are alone on Earth-Prime. Red Death claims she's from an "alternate timeline" (which could bring to mind something like Savitar), but everything about it seems to suggest a parallel Earth similar to what the multiverse was pre-Crisis.