here is all the shadow info from cows and easter eggs.
Get the quote "Anyone for Peking duck?" by doing one of the following:
Pull the trigger at the beginning of each mode (does not work on Duel of Wills and Hotel).
Pull the trigger at the end of Duel of Wills.
The quote is also heard during the Extra Ball animation, during the quote "I know" in Who Knows award, when you get a Scene Bonus of 2M, when the ball is in the Battle Field popper.
The quote is only heard once per playfield location.
The quote is said by three different people and when you´ve heard all three, start a scene to start The Secret Laughing mode (Observe the duck on the right, quacking.).
During normal play, the mist behind the score digits sometimes forms a cow or a duck. Pull the trigger to hear them!
When you drain fast through an outlane after just have hit a target, a bunch of cows walks across the screen, moo´ing.
The same cows appears if you either become the new Shadow Loop Champ or get 8 or 9 loops.
Pull the trigger in the Video mode to clear the screen for a few seconds, but watch out when the Purba´s return! This only works once per Video mode.
Pull the trigger in the Mongol Hurry Up to end the mode and award 3M.
If you leave your initials blank when entering a hi-score, the table will label the score MOO.
During Attract mode, press one of the following sequences. Pull gun trigger after entering last code to activate:
13LD, 1LF, 2RD (MAB)
3LD, 15LF, 23RD, 19RF (COWS)
13LD, 1LF, 18RD, 11RF (MARK)
2LD, 18LF, 9RD, 1RF, 14BI (BRIAN)
19LD, 15LF, 14RD (SON)
2LD, 2LF, 2RD, 2RF, 10BI
2LD, 9LF, 2RD (BIB)
12LD, 15LF, 14RD, 5RF (LONE)
Explanation: LD=left diverter button, LF=left flipper button, RD=right diverter button, RF=right flipper button, BI=buy-in button.