Go to the skull load-in screen. Type the following case-sensitive text, with
spaces as noted: Roberto Dan R Zaphod B [Space]

After you type Roberto, Stauf will say, " Duh.... that's not it Karl!".
Ignore him, he
is trying to trick you. After the B, type [Space], then any of the following
letters to
get to that point in the game:

A: End of disc one.
S: End of disc two.
D: End of disc three.
F: End of disc four.
E: The "Olive In Stein" riddle, good for using the Kellyn code.
G: The very end, at the "Let's Make A Real Deal" intermission sequence.