Some useful keys (you still can redefine the others in the menu options) :

- "F1": call the help on line
- "Echap" : back to the main menu
- "I" : provides the inventory of your ammunitions, found codes and keys
- "P" : pause; stand-by and back to the game.
- "M" : Level Map. You only can get it with cash money.
- "TAB" : Hide / Reveal the control panel's components