Super password:
Enter the following sequence at the password screen for access to all 32 levels,
all gems, and both keys. After entering the first line, two more lines will
appear. Triangle, Triangle, Triangle, Triangle, X, Square, Triangle, Triangle
Triangle, Triangle, Square, X, Triangle, Circle, Triangle, Triangle Triangle,
Circle, Square, Triangle, X, X, X, X

Debug menu:
Hold Up + X at the Naughty Dog logo until the title screen appears. Hold Left
and press Square, Circle, Square, Start. During game play, pause and press Down,
X(26), Down. The sound of a snort will confirm correct code entry. The game will
resume. Push Select to display a debug menu.

10 Extra Lives:
on the second warp room jump on the polar bears head 10 times this will give you
10 lives you can only do this cheat once.

Submission:
DAVID

Perfect Code:
On the map press up+ all the L1 L2 R1 R2 and do it again,
then press left and all the top buttons.
TTTTXSTTTTSXTOTTTOSTXXXX
T=Trinangle,S=Square,O=Circle,X=X

Passwords:
2% Circle, Square, Circle, Square, Circle, Circle, Triangle, Square
6% Circle, X, Square, Triangle, Circle, Square, Square, Triangle
11% Square, Square, X, Square, Square, Triangle, X, Triangle
13% X, Square, X, Circle, X, Square, Triangle, X
18% Square, Square, Triangle, X, Circle, Circle, X, Triangle
22% Circle, Square, Square, Circle, Circle, X, X, X
27% X, Circle, X, Circle, Circle, X, Square, Circle
31% Square, X, Triangle, Triangle, X, Square, X, Triangle
36% X, Circle, Circle, Circle, X, Square, X, Square
38% Square, Square, X, Triangle, X, Square, Circle, X
52% Triangle, Triangle, Circle, X, X, Square, Square, Circle
75% Square, Triangle, Triangle, X, X, Circle, Circle, Square
90% Circle, Square, Triangle, Square, X, X, X, Circle