Debug menu:
     At  the  Naughty  Dog  logo,  hold  Up+X  until  the title screen
appears. Then, hold LEFT+Square+O+Square+start. Now while playing ,you
will  hear the sound of a snort. The game will resume. Press select to
display a debug menu.

Clearing obstacles:
     On  levels such as "Road to Nowhere", you can jump onto the ropes
on  the  side  and  easily  clear  most of the obstacles. To keep from
falling off the rope, you need to jump forward repeatedly on the rope

Secret levels: 
     * Look for a secret level at the top of the Native Fortress area.
This path runs behind the normal path and allows you to avoid enemies.

     *  In  the  Rolling  Stones  level,  collect three Dr. Neo Cortex
heads.  One  is  in a crate you must head-butt at the beginning of the
level.  The  second is in a cluster of dynamite boxes in the middle of
the  level, and the third is by the exit warp. Get all three heads and
you'll  be taken to a difficult bonus area where you must cross crates
of TNT!

Enemy strategies: 
     *  Don't  use  spin  attacks  against Papu Papu. Jump on his head
after he swings and missed you with his club.

     *  To  defeat  Ripper  Roo, dodge him by moving between the front
three  cubes,  then when he approaches from the back, activate the TNT
and move away quickly.

Tips: 
     *   Collect   three  tiki-mask  power-ups  and  you  will  become
invincible for a short time.

     *  When  outrunning  the boulders, try to run in a straight line,
and  follow  the  trails  of  fruit,  as  they  will  lead  you around
obstacles.

     *  Smashing all the boxes without dying will give you a "perfect"
screen and a gem.

     * In the Cortex Power level, jump to the right and bounce off the
wall to avoid the spiked robots.

     *  When spin-busting crates on platforms, be sure you're standing
still  before  hitting  the  spin attack button, or you may spin right
off.

Super code to get to the third island: 
Go to the password screen and enter the following: 

     Triangle,  Triangle,  Triangle,  Triangle,  Circle,  X, Triangle,
Triangle,  X,  X,  Triangle,  Circle,  Square,  Circle,  X,  Triangle,
Triangle, Circle, Square, X, X, Square, Triangle, Triangle.

Access all levels:
     This  code  lets  you  to access all 32 levels completed with all
gems and keys, allowing you to play the different endings:

     Triangle,  Triangle,  Triangle,  Triangle,  X,  Square, Triangle,
Triangle,  Triangle,  Triangle, Square, X, Triangle, Circle, Triangle,
Triangle, Triangle, Circle, Square, Triangle, X, X, X, X.

Posses all the keys and gems:
     This  code  allows you to instantly have all the gems and keys in
the game:

     Triangle,  Triangle,  Triangle,  Triangle,  X,  Square, Triangle,
Triangle,  Triangle,  Triangle, Square, X, Triangle, Circle, Triangle,
Triangle, Triangle, Circle, Square, Triangle, X, X, X, X.

31 lives:
     At  the  password  screen,  press  Triangle,  Triangle, Triangle,
Triangle,  Circle,  X, Square, Triangle, Triangle, Triangle, Triangle,
Square,  X,  Triangle,  Circle,  Triangle, Triangle, Triangle, Circle,
Square,  Triangle,  X,  X, X, X then go down to castle machinery. When
you start, jump on gem and float up to lives.

----------------------------------------------------------------------

Hints:

Beating the Bosses:
     Having some trouble? These tips and tricks should help.

Boss one: Papu Papu:
     To  do  to beat him, dodge the large stick that he swings around.
When  he's  done  swinging,  jump  on  his  head  and  that  sends him
backwards.  When  he's  falling  back, spin him 3 times and he will be
gone.

Boss two: Ripper Roo:
     Detonate  the  dynamite  boxes he lays down when he's on a nearby
square. Do this three times and move on.

Boss three: Koala Kong:
     Dodge  the  four  boulders  he throws at you. When the fourth one
lands  in  front  of  you,  spin attack the rock and it will hit Koala
Kong. Do this 4 times and move on.

Boss four: Pinstripe:
     Keep  your  eyes  on  him  the  whole time. When he jumps off the
table,  wait  till  he  stops  shooting then spin attack him. To avoid
being  shot,  hide behind the couches. Hit him like that three or four
times and he'll be on the ground.

Boss five: Dr. Nitrus Brio:
     To  beat  this boss, dodge the red and green beaker bombs that he
throws.  Jump  on the green blobs that are on the floor and those will
crash  into  Brio.  When he has thee energy bars left, he turns into a
demon.  Jump from the platform and smack his head. Repeat till he's on
the floor.

Final boss: Dr. Neo Cortex:
     To  beat  the doc, watch his red and blue attacks. When you see a
green one, send it back. Remember, TIMING IS EVERYTHING.

----------------------------------------------------------------------

Passwords:

% Complete - Password
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 
19% Triangle, Triangle, X, Triangle, Circle, Circle, Square, X, Square, 
    X, Circle, Square, Circle, Square, X, Triangle, Square, X, X, Square, 
    X, X, Triangle, Square 
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, Square, 
    Triangle, Triangle, X, X, Circle, Circle, Square, Circle, Square, 
    Triangle, Square, X, X, X, Circle 
56% Triangle, Triangle, Triangle, Triangle, Triangle, X, Square, Square, 
    Square, Triangle, Triangle, X, X, Triangle, Square, Circle, Triangle, 
    Square, Circle, X, Circle, Circle, Triangle, X 
57% Triangle, Triangle, Triangle, Square, Square, Square, Square, Circle, 
    Square, Triangle, Triangle, X, X, Triangle, Triangle, X, Circle, Square, 
    Square, X, Square, Triangle, X, Circle 
63% Triangle, Triangle, X, X, X, X, Triangle, Square, Square, X, X, X, 
    Circle, Square, Triangle, Triangle, X, Circle, X, Circle, Triangle, 
    Triangle 
68% Triangle, Triangle, X, X, Square, Circle, Square, Triangle, Triangle, 
    X, X, X, Circle, X, Square, Square, Triangle, Triangle, Circle, Circle, 
    Square, X, Circle