Thank you! for playing. I forgot to add a "about the game " section in the game. But I have mentioned about " how to play ?" in game page description. Inshort "you are trapped in a maze for 3 minutes and after 3 minutes, one gate will be opened for you to escape ,you have to find that door to escape". It is simple..
The alarm sound actually notifies you with a message "one door has been opened".