1. Go to Leonardo Da Vinci's time period.
2. Unlock the door to the balcony with the key found in the keyhole.
3. Hold down the option (Mac) or control (IBM) key while you go through the door.
4. The enemy agent will dance and moonwalk until you stop pressing the option/control key.
At the Main Menu of Buried in Time, press and hold Ctrl on the PC, or Option on the Mac, and while holding the key, click "NEW GAME". I think you have to have "PLAY INTRO" selected. Instead of the normal intro, a clip of Caldoria exploding will play, after which you will be taken back to the Main Menu. Note: the timing of the key pressing is the same for the Moonwalking Agent egg.
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