At the password screen, press Up 1 time and enter the Japanese character. Up 2 times, Right 2 times and enter the Japanese character. Right 2 times, Down 2 times and enter the Japanese character. Down 1 time and enter the Japanese character. Down 2 times, Left 3 times and enter the Japanese character. Down 2 times, Right 7 times and enter the Japanese character. Left 4 times, Up 3 times and enter the Japanese character.