Reference to
Ion Storm: In
Hell's Kitchen, there's a basketball court (the one in which two NSF thugs are mugging a man after exitting
Smuggler's). Pick up the
basketball and throw it towards the hoop, and you get the message: "Basketball?! You should be playing
football! Go
Cowboys!" In addition, making a shot (or, apparently, getting the ball stuck between
basket and
backboard) results in the message "Sign him guy up for the Knicks!"
And another, a references to
Roger Zelazny's books: In "building
14" in
Paris, a datacube locked up on the second floor mentions a computer login as "rzelazny/shadowjack", or, Roger Zelazny, and the book
Jack of Shadows.