1)get granpa's letter from Lan's Dad's computer 

2)go home and talk to Lan's Mom, then look out the window that shows a doghouse, you will
find writing 

3)go to oran isle, go to the air cleaning unit and jack in, talk to the mr.prog. He will
say that he remembers a dog burying something in the far corner, go to the upper right
corner,examine 

4)go to End City, go to the castle, go to the top of that castle, you will see 2 big
yellow fishes, go to the right side of that fish, talk to the eye of this fish, then you
will read another clue 

5)jack in to ACDC Area 3, walk to the place with a 9 square, you will see a navi standing
there at the left corner of this place, talk to him, he will ask you looking for
something, then you must answer "Yes", then he will give you a key 

6)don't leave that place, move right, go to the centre, then press 'A' button, and there
will appear a door, after that complete the story 

7)go to SciLab 3, use OldPCode to unlock the cube, then continue going, then you will see
an old navi standing at ACDC Area 2,talk to him, he will give you a SciKey 

8)go to SciLab 3, go to the end road which is 3X5 area, walk to the centre along the lond
side, press 'A' button, you will see another door appear 

9)go to Oran Isle, jack to Drill Comp 4, go to the machine which use StopKey to stop the
rock continue falling, you will see a green navi, talk to it, it will ask you something,
then go near that machine, turn right and press 'A' button, then you will see a door
appear.