Icons and/or text may appear in the HUD to indicate other actions that are only available at certain times or in certain places, to show they are available to perform and which button performs it; for example the text "A – open door" may be displayed, but only when the character is near a door. Menus – Menus to exit, change options, delete files, change settings, etc. Game progression – the player's current score, money, lap, or level (as in stage or as in experience points). This might also include the character's current task or quest. Mini-map – a small map of the area that can act like a radar, showing the terrain, allies and/or enemies, locations like safe houses and shops, streets, etc. Speedometer/tachometer – used in most games which feature user operated vehicles. Usually shown only when driving one of these. Context-sensitive information – shown only as it becomes important, such as tutorial messages, special one-off abilities, and speech subtitles. Reticle/cursor/cross-hair – an indication of where the character is aiming or where the mouse pointer is. Pressing a key while pointing at an object or character with the cursor can issue actions like shooting, talking, picking up objects, manipulating switches, using computers, etc. Stealthometer – displays the awareness level of enemies to the player's presence (used mainly in stealth games and some first-person shooters). Compass/quest arrow - sometimes found in RPGs, first-person shooters and driving games, they help guide the player toward the objective. An example is in the first-person shooter BioShock, which displays an arrow pointing the direction of the next objective on the top of the player's HUD. Sometimes the compass itself might not be a real compass, rather one that points toward the next location or goal. Another notable example is in the open-world driving game Crazy Taxi. There are also trends common among genres and platforms. Many online games show player names and a chat text box for talking to the other players. RTS games tend to have complex user interfaces, with context-sensitive panels and a full-overview mini-map with fog of war. How the HUD is displayed Typically this information is represented numerically, with the health level being a number from 0–100 (percent): 100 representing full health and 0 representing empty, no health or death. However, many other methods of visual representation can be used. For instance, certain games employ a "health bar" which