Cheat Menu:
Problems in the dungeons? Exit blocked? Don't panic!
At the bottom of the screen, select the small rotating credits menu (bottom center - flip 2 times). Point the mouse cursor exactly at the "I" in the name "Till Bubeck", then press both mouse buttons simultaneously (screen flashes briefly) and press the "Help" key - this opens a cheat menu.
(Only works on the main game screen, not in other screens like inventory)

Roulette Trick:
The copy protection question at the start can give clues about roulette results. If you bet accordingly, you can get rich quickly. For the following manual pages, these winning numbers were drawn:
Page 9: 2, 4, 33, 14, 10
Page 10: 22, 5, 4, 25, 0
Page 25: 6, 8, 11, 28, 3, 22, 14, 10, 28, 9, 29, 18