Enter 9??92? as a password to unlock all levels, have 8 underwear icons, and 100% Dubloons in all levels.
Enter ???91? as a password to unlock all levels under the easy difficulty setting.
Enter ???92? as a password to unlock all levels under the hard difficulty setting, all underwear icons, and 100% Dubloons in all levels.
Alternately, enter 22999? as a password.
Alternately, enter ???9?? as a password.