Button
From Styleguide
button
A digital or analog input device on a controller or mouse that is pressed down to register input.
Selectable input on a screen is also called a button. Use your mouse to click on the start button.
Do not use to refer to directional pads or keys on a keyboard.
Buttons are usually referred to by a single letter or number clearly labeled on the controller. These buttons may be referred to by their name without additional punctuation. The modifier "button" is optional after the button name. Press R2 to fire your weapon. Press the X button to jump.
Special cases: The following systems have controllers whose buttons are not single letters or numbers.
- Atari 2600: The single button is referred to as "the button."
- Turbo-Grafx 16: I and II, not 1 and 2.
- PlayStation line: X, triangle, square, circle (or O). The shoulder buttons are L1, L2, R1 and R2. Pressing the analog sticks inward is a form of input commonly referred to as L3 and R3 – this usage is considered jargon.
- PlayStation 3: PS button.
- Xbox: black, white.
- Xbox 360: Rear buttons are LB and RB. Rear triggers are LT and RT. Central button with light up X is the guide button.
- Wii: +, -, home button.
- Mouse: left button, right button, scroll wheel. Optionally left mouse button and right mouse button. See click.
Example: To make Mario jump, press A. Pressing the B button while Mario is in the air makes him do a jump kick.
Wrong: Press button X to fire your weapon.
