Context sensitive controls open up new opportunities for unique gameplay. Rather than have buttons that do a single action and only a single action, have button(s) that can do multiple actions when the time is needed. Like picking up a weapon, opening a door, take contol of a vehicle etc. all on one button. This can vary the gameplay greatly and prevent the player from having to remember multiple button assignments. When in gameplay, an indication will pop up, usually represented by the button and text saying what it does. In the case of (mouse) cursor based games, the cursor itself can change shape to indicate what default action will be taken when activated.