This cheat busts Litil Divil wide open:

     When  you  have moved to the correct directory don't run the game
with the normal command. Instead type one of the following:

Cheat code:             EffecT:
divil KmCiNpOcKeT       Skip stages by pressing [F1]
divil Nicole            Walk through rooms by pressing [Shift-P]
divil MEANING           Recover energy by pressing [Shift-T]
divil Donkey            Get more treasure by pressing [T]
divil Grumpy            Get more keys by pressing [K]