Press on the doors to change rooms. It is possible for you to die randomly, because you got caught and switched rooms too fast. Have fun. The high score is the highest of all the people who have played it, meaning that you can always make one. The goal is to survive the longest.
There is also a cheat that skips all the talking. You have 1 second to press it or else the talking will start. It is one of the windows on the top
