Here are some cheats and tips for the game Have a N.I.C.E. Day.
All weapons and extra items:
Hold [Ctrl] and type ALLWEAPONS.
Repair pack:
Hold [Ctrl] and type HELPME.
Unlimited ammunition and extra items:
Hold [Ctrl] and type AGRESSOR.
More money:
Hold [Ctrl] and type MUCHMONEY.
More acceleration:
Hold [Ctrl] and type BOOSTER.