Well, you go to the office room and look under the sofa and get disk and paperclip insert disk into computer.
it is 3568
Mission 3? You can see it on youtube.
you go to the HQ and get the flash lite
The wrench is in your spy phone, there is a button on the spy phone that gives you three tools, a wrench, scissors, and a comb.
you go under the couch in the manager's office, when you found the pin and the dvd. You put it in the computer the computer will load then.You click on files the combination it will tell you north 3,east 5,south 4 and west 5.Then you click out of it and go down-stairs,then you enter the combination in,the door will open.you click the coins on the top and you complete the mission!
It is different every time you go on the Missing Coins mission in Club Penguin.
Just Go To This Website For A Full Guide On "How To Complete The Case Of The Missing Coins - Mission 3" The following is NOT a link http://www.club-penguin.org/club-penguin-mission/club-penguin-mission-3-case-of-the-missing-coins.html
it is 3568
Mission 3? You can see it on youtube.
See the related link.
You look under the sofa. Then you put the disc in the computer then turn it on then you click on the combination and you use the numbers on it and there's your combination.
the code for the missing coin mission is: 5 up 3 left 0 down 2 right
In G's droor
Search on Google for 'Case of the Missing Coins Walkthrough.' The best ones are youtube videos
0466 going clokwise
you go to the HQ and get the flash lite
I Do Not Know So Find out Yourself