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Sly's fifth and final costume is obtained at the beginning of Ancient Arabia's Open Sesame

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Sly Cooper: Thieves in Time - IGN

Sly Cooper: Thieves in Time Trophy Guide – HTG – Happy Thumbs Gaming

Sly Cooper - Sly Cooper: Thieves in Time Guide - IGN

The Untold Story of the Psychic that Predicted Sly 4's title in 2007 and Created Sly Cooper World ​

Sly 2: Band of Thieves - ps2 - Walkthrough and Guide - Page 2 - GameSpy

Sly Cooper: Thieves in Time - IGN

Sly Cooper: Thieves in Time - IGN

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