One of the pictures on display in the museum in Cairo shows an early concept drawing of Sly Cooper. It can be seen in the first hallway on the right after leaving Bentley at the computer terminal.
In the demo for the game, the opening scene in Cairo had statues of Rocket and the raccoon from Rocket: Robot on Wheels (1999) for the Nintendo 64. (These are removed from the final version.)
TOM from the Toonami network serves as a secret gadget for Sly and can be unlocked from a cheat code.
Last acting role for Gloria Manon.
The last game in the series to be given a release in Japan. With exception of the Sly remastered trilogy on the PS3, Sly 3 and beyond were never released in Japan due to low Japanese sales of the first two Sly games.