In combat, a quick time event (QTE) is initiated when the player has weakened a strong foe. The player performs a sequence of actions on the game controller shortly after an image of its circle button appears as an on-screen prompt. This allows for limited control of Kratos during a QTE cinematic sequence, which, if successful, ends the battle; failure usually results in damaging Kratos. Similar in function is a quick time sex mini-game that occurs when Kratos encounters female twins; this became a regular feature throughout the series until "" (2010).