There is a magnet on the roof, to get to it, go to the base and talk to G, who will then open the key drawer, find the one that says "roof" in code, obtain it, then go to the gift shop and use the key, but make sure you have the paper clip under the sofa, get to Herbert's magnet, use the screw driver on it then put the paper clip in it, the magnet will malfunction, afterwards go down and enter the vault, where rookie (the green penguin) will surface and spit out a coin, talk to him then go to the base and talk to G, mission accomplished!
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
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Mission 3? You can see it on youtube.
See the related link.
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
It is different every time you go on the Missing Coins mission in Club Penguin.
you go to the HQ and get the flash lite
I Do Not Know So Find out Yourself
In mission 3, you need to short out the power box on the roof.
No, no one can meet him unless you do the mission "Case of the Missing Coins" and "Clockwork Repairs".