To enable cheats, press the Spacebar on the main menu to access the options screen. Then type the word stretlamp (streetlamp in the two demo versions) and press Enter.
At the copy protection screen press Spacebar to skip this screen.
The the following keys will become available during gameplay:
|2||Set time to 1 (unavailable in the demo versions)|
|4||Lose a life|
|Keypad +||Skip to next level|
|Keypad -||Skip to previous level|
|Ctrl||fly/no clip mode (only available in the demo versions)|
These keys are available without enabling cheats.
|P then Q||Return to main menu|
|F10||Exit to DOS|