20. Batman: Arkham Knight's map is displayed
In Wayne Enterprise's vault, players can see a computer that's displaying a very recognizable map. If that image feels familiar in the slightest, is because it's a replica of Gotham's map that players explored in Batman: Arkham Knight. Maybe Rocksteady's iconic version of the Cape Crusader's city could be explorable once again in future expansions. Or, you know, we could just replay Arkham Knight over and over again.
21. Big Belly Burger
If you've watched the CW's DC shows, chances are the name "Big Belly Burger" is familiar to you. But in case you need a reminder; this fictional restaurant chain is has been a fixture of the DC Comics Universe for years and has most recently gained popularity for appearing in the Arrowverse and being name-dropped in projects such as The Flash and Arrow. Harrison Wells even goes as far as claiming that Big Belly Burger is a constant all across the multiverse.
Well, it appears he wasn't wrong.
22. Karl Kesel
There are multiple cafeterias across the city of Metropolis in Suicide Squad: Kill the Justice League called "Kesel Koffee". This name is a reference to Karl Kesel, a comic-book writer and inker who's better known for his work in multiple DC comics.
23. Mementos of many iconic villains
Harley Quinn, Deadshot, King Shark, and Captain Boomerang rob a few gadgets from the Justice League Hall and use them to traverse the city faster at the beginning of the game. However, Gizmo's Jetpack and Sviana's Speed Force gauntlet weren't the only interesting things present in that supervillain exhibition. In it, we can see all sorts of memorabilia from many iconic DC characters, including:
- Blood from Man-Bat.
- Scarecrow's glove.
- A handkerchief that belonged to Polka-Dot Man.
- Bizarro's rock.
- Merlyn's arrow.
- Nightwing's sticks.
- Condiments from Condiment King (which may be the best items on this list).
- A toxin canister from Dr. Poison.
- Toyman's condense a-ball.