You receive clues to the secret password in five different levels:
-The secret password contains five letters. -The secret password is in the title of three levels. -Two letters of the secret password are "SO". -The last letter of the secret password is "A". -Two letters of the secret password are "NY"
The password, therefore, is Sonya, a reference to the beta tester Sonya Natanzon. Entering this password on the main screen unlocks Do It Yourself mode where you can design your own level.