At the password screen, enter the very first Japanese character. Right 2 times, Down 1 time and enter the Japanese character. Down 1 time, Left 1 time and enter the Japanese character. Down 2 times, Right 4 times and enter the Japanese character. Right 3 times and enter the Japanese character. Up 1 time, Right 3 times and enter the Japanese character. Down 2 times, Right 5 times and enter the Japanese character. Right 6 times, Down 1 time and enter the Japanese character.