Easter Eggs and References - Sly Cooper: Thieves in Time Guide - IGN

Clockwerk is the mortal enemy of the Cooper family and has stalked them for centuries if not millenniums. He can be spotted from a distance during very

That Official Sly Cooper Easter Egg That Had Fans Wondering

The Guru's Staff Piece, Sly Cooper Wiki

Walkthrough:Getting Stronger, Sly Cooper Wiki

Stone Age Reconnaissance - Sly Cooper: Thieves in Time Guide - IGN

Sly Cooper Easter Eggs and Secrets

Timing Is Everything, Sly Cooper Wiki

Walkthrough:Showdown with Rajan, Sly Cooper Wiki

Eye in the Sky - Sly Cooper: Thieves in Time Guide - IGN

Hidden Clockwerk Easter Eggs - Sly 4: Thieves in Time

IGN Reviews - Sly Cooper: Thieves in Time Video Review

Sly Cooper - Thieves-In Time (IGN Prime - Wiki Guide PDF