Resident Evil: Operation Raccoon City is packed with references and easter eggs for long-time fans of the series. Keeping an eye out for these can add an extra layer of enjoyment to your playthrough.

- Classic Character Encounters: Beyond the main story, you'll encounter iconic characters like Hunk, Ada Wong, and Nicholai Ginovaef. Pay attention to their dialogue and actions.
- Familiar Locations: Many areas, like the RPD, Umbrella Lab, and Clock Tower, are reimagined versions of classic Resident Evil locations. Explore them to spot familiar details.
- Document & File Lore: The data logs and files you collect often contain direct references to events, characters, and BOWs from other Resident Evil games.
- Umbrella Logos: Keep an eye out for hidden Umbrella logos in unexpected places.
- Sound Cues: Listen for classic Resident Evil sound effects, such as the 'item pick-up' jingle or specific zombie groans.
- Weapon References: Many weapons are direct references to those found in other RE titles (e.g., Samurai Edge handgun).
Some of these easter eggs are subtle, while others are more overt. They serve as a nostalgic nod to the series' rich history and reward observant players.
Compare easter eggs & references inResident Evil 5