wasd or arrow keys to move. Start the game moving to the right, you will appear from behind the large countdown in the center of the screen. Collect all the treasure and the key to open the doors and escape. The large portal will teleport you to the small portal. The key opens the second door which is the large wall before the flag. You must have all treasures or the doors wont open.
This was originally an assignment for a class but I went a little overboard. If you complete it fast enough you get a high score. It is quite unforgiving and I recommend patience. This game is not for having fun, the one goal is to give YOU depression.