Extra building time:
Pause game play when starting a new level. Highlight the stop watch and hold L1 until the left side of the time remaining meter is reached.

Hint: Clean hospital:
Save the game and reload when the hospital becomes full. All of the garbage and patients will disappear, allowing a fresh start.

Hint: Get rid of mouse holes:
Place a plant over where the mouse hole is located. Remove the plant and the mouse hole will be gone.

Level	Password
1	Square, Square, Triangle, Circle, Square, X, Square, X
2	X, Circle, Square, Triangle, Triangle, Circle, Square, X
3	Circle, Circle, Triangle, Square, X, Triangle, Circle, Triangle
4	Square, Triangle, Circle, Square, X, X, Triangle, Circle
5	Circle, Triangle, Square, Circle, X, Triangle, Circle, Square
6	Square, Triangle, Square, Circle, X, Square, X, Circle
7	Square, Triangle, Triangle, Circle, X, Square, Triangle, Circle
8	X, Triangle, Square, Circle, Triangle, Circle, Square, X
9	Triangle, Square, X, Triangle, Circle, X, Triangle, Square
10	Circle, Square, X, Triangle, Square, X, Circle, Square
11	Triangle, Circle, Square, Circle, Triangle, Square, Circle, X
12	Circle, Square, X, X, Square, Circle, Square, Triangle