There's an awful lot of attention put into the "Arkham" games -- not only for those looking to enrich their video game experience -- but for longtime fans of the "Batman" comics and various animated series, who appreciate callbacks to some of their favorite stories.

Thankfully, to help you keep track, YouTube user Riley Nicholas has compiled all 75 of the easter eggs in the first game of the acclaimed series, Rocksteady's "Batman: Arkham Asylum." Check out the comprehensive roundup below:

EXCLUSIVE: Kevin Conroy & Mark Hamill Star In Animated "Batman: The Killing Joke"

The "Arkham Asylum" voice team of Kevin Conroy and Mark Hamill are reuniting for the "Batman: The Killing Joke" animated movie, being released July 2016.