All weapons and extra items
While playing a game, hold [Ctrl] and type "ALLWEAPONS".

Infinite ammunition and extra items
While playing a game, hold [Ctrl] and type "AGRESSOR".

Repair pack
While playing a game, hold [Ctrl] and type "HELPME".

More money
While playing a game, hold [Ctrl] and type "MUCHMONEY".

Better acceleration
While playing a game, hold [Ctrl] and type "BOOSTER".