At the password screen, enter the first Japanese character 14 times. Press Down 6 times, Right 3 times and enter the Japanese character 10 times. Press Left 3 times, Up 6 times and enter the Japanese character 2 times. Press Right 4 times, Down 1 time and enter the Japanese character. Press Up 1 time, Left 4 times and enter the Japanese character 3 times. Press Right 4 times, Down 1 time and enter the Japanese character. Now select End to go to the last area where you'll get the ending.