Skip Level
On the fax screen put in 24328 into the phone numeric keypad to access the cheat mode. Typing in 7287 will also take you to a special rat-shooting level after you've completed your currant level.
Neat & tidy
When your hospital is full or dirty just save the game. Then reload it . By doing this, there will be no people or rubbish in your hospital.
No More Rats
If there are rats in your hospital, just put a plant in front of the hole.
Level Passwords
Level 2:X, Circle, Square, Triangle, Triangle, Circle, Square, X.
Level 3:Circle, Circle, Triangle, Square, X, Triangle, Circle, Triangle.
Level 4:Square, Triangle, Circle, Square, X, X, Triangle, Circle.
Level 5:Circle, Triangle, Square, Circle, X, Triangle, Circle, Square.
Level 6:Square, Triangle, Square, Circle, X, Square, X, Circle.
Level 7:Square, Triangle, Triangle, Circle, X, Square, Triangle, Circle.
Level 8:X, Triangle, Square, Circle, Triangle, Circle, Square, X.
Level 9:Triangle, Square, X, Triangle, Circle, X, Triangle, Square.
Level 10:Circle, Square, X, Triangle, Square, X, Circle, Square.
Level 11:Triangle, Circle, Square, Circle, Triangle, Square, Circle, X.
Level 12:Circle, Square, X, X, Square, Circle, Square, Triangle.