Cheat Codes:
Activate the following cheats by entering the corresponding codes:

CHEAT FUNCTION – CHEAT CODE
Flight mode – hhklm
No enemies – hhzondertanden
All machines activated – hhzonderhanden
Full energy – hhstroom
All Super Batteries – hhsupbat
Level skip – hhvolgende
Extra life – hhpluseen
Suicide – hhsterf