Adrenaline Burst Plus was a power-up that could be purchased for Bentley in Sly Cooper: Thieves in Time. It became available in the episode "40 Thieves" after completing the mission "Open Sesame," and it cost 400 coins.
This power-up is an upgrade to Adrenaline Burst. Double-tapping allows Bentley to boost as usual. This time, the player can hold down the same button to have Bentley boost longer.