- The teaser image is a quote written by Franz Kafka. In fact his stories were the influence for some elements of the story.
- The Achievement/Trophy titles for finishing an episode having earned all the medals ("Only Good Guys Win Medals", "There's a Medal for That", "Sweet, Golden Medal" and "I'm Not Leaving Without My Medal") are all quotes from Wreck-It Ralph.
- The award/trophy/achievement for defeating 100 enemies with a knife, Knifin' Around, takes its name from a "Space Ghost: Coast to Coast" bit.
- Moira and Claire are test subjects Number 2 and Number 6.
- The episode titles are all taken from titles of novels and stories by Franz Kafka.
- One of the campaign titles that you can unlock is Full Viral Alchemist.
- The Haunted and the aesthetics of the stages are strongly reminiscent of stages and monsters from Silent Hill.
Shout Out / Resident Evil: Revelations 2