|Secret Arcade Key used to unlock the basement of Bentley's Arcade. Check it out and get ready to rock out with some fist pumping tunes!|
— Prize description[src]
The Special Arcade Key was the final prize unlocked in Bentley's Arcade for 311 tokens. It was used to unlock the fourth arcade machine and gain access to the basement of the arcade, where the Cooper rock concert takes place.
It is a two pronged key with a circular grip. There is a hole for a keyring in the grip. It is made of bronze.
|Bentley's Hackpack prizes|
Sly Cooper Coin · Clue Bottle · Sly Cooper Safe · Halloween Mask · Treasure Chest · Wonder Goat · Crossed Canes · Puzzled Cow · Boar Guard · Bonsai Tree · "The Money Makers" · Lily Cactus · Shock Pistol · Egan Eel · Catapult · Circus Car · Cooper Keys · Thievius Raccoonus · Fisherman Statue · Jibble Eggs · Bentley Token · Penelope Token · Murray Token · Carmelita Token · Sly Token · Camel Carpet