Minecraft wiki entry for Player, associated text: The onscreen heads-up display (HUD) consists of the player's health bar, hunger bar, experience bar, and hotbar. The armor rating bar appears above the health bar if the player is wearing armor and the oxygen bar appears if the player is submerged in water or is suffocating in a block. The HUD also contains the crosshair and a held object (or fist). The HUD can also be toggled by F1.