Secret Of Monkey Island flashbacks
Use the water approximately thirty times on Plunder Island (after the shipwreck with the Welshman sitting on the box). A sequence from the first game in the series, featuring Fester Shinetop throwing Guybrush off the dock, will appear.
When you are in the Goodsoup family crypt in Chapter 4, examine the crack in the wall to the right of the ghost. You will pop up in a scene from the original game and a humorous sequence will follow.
View ending sequence
Press (Shift) + W.
Working clock
The Curse of Monkey Island integrates itself with the Windows clock. On Plunder Island, the clock in Puerto Pullo chimes accurately on every hour and half hour. In addition, having Guybrush look at the clock gives you an accurate (and humorous) time of day, to the second.
Chapter skip
Press (Shift) + V followed by X during the sea fights in chapter three to advance to chapter 4.
Christmas greeting
Begin game play, then immediately quit. Set the system date to December 25th and start the game again.
High pitched voice
Have Guybrush inhale one of the balloons, then quickly talk to someone.
LeChuck doll
When on Skull Island, ask "What about toys, got any toys?" You will be given a LeChuck Doll. You can use the doll at any time as it very funny, however, use it with LeChuck at the last chapter for a laugh.
New Year's greeting
Begin game play, then immediately quit. Set the system date to January 1st and start the game again.