Your aim in this stealing game is to check the map of the museum properly. You have to reach the emerald chamber and steal the precisous jewel. You will have to collect some keys to open some closed doors. Try to underestand the color of the keys and doors. The precisous emerald is of course green. Steal the emerald and escape from the building before the cops arrive. Use your ARROW KEYS to move. Stay alert and avoid the lase beams and cameras to avoid being caught. You can check the map to discover which room you are in if you feel lost. Pay attention to instructions on the bottom left. Good luck!