The Heads Up Display (HUD) is the set of menus and displays that show while you play a first person shooter. It displays information such as your HP and Credits/Evolution Points. The HUD shows what items a human has equipped, as well as his current Stamina and Ammunition. The HUD shows an alien what class it is, whether or not it has wall walking enabled, or possesses poison. Other information can be displayed, such as your Ping and FPS.