On the Submarine level, if you see an ''!'' over Dory's head, it indicates you should move or Bruce will catch you. To keep away from Bruce keep rotating the Analog-stick.
Avoiding the diver:
When the diver is after you, he will always try to grab you in the same few locations. Learn where these are and avoid them.
Credits
Press Triangle, Square, Circle, Triangle(2), Square, Circle, Triangle, Square, Circle, Triangle, Square(2), Circle, Triangle, Square, Circle, Triangle, Square, Circle(2), Triangle, Square, Circle at the title screen, the load or start a new game. Pause game play to access the cheat option at the level selection menu.
FMV sequences
When you complete a level or are at the middle of a level, you will see an FMV sequence from the movie Finding Nemo.
Get past Bruce on level 9 (Submarine)
To get past Bruce When he is chasing you swim to the top and than look at Dory. When there is an !mark on her swim down do this repeatedly toget past Bruce.
Gold Starfish
Going though all the bubble rings, putting the colored pebbles in the correct colored holes, bouncing on all the things that bounce, winning the races, and destroying all enemies will earn you Gold Starfish towards bonus levels. Note:
There are some timed levels and timed races; be as quick as possible.
Invincibility
Press Triangle, Square(2), Circle(3), Triangle(2), Square(3), Circle(4), Square, Triangle, Circle(3), Square,Circle, Triangle,Circle(2), Square, Circle(2), Triangle, Circle, Square, Circle(3), Triangle at the title screen, the load or start a new game. Note: The invincibility does not occur on all levels. Pause game play to access the cheat option at the level selection menu.
Keeping up with Dory
To keep up with Dory, grab all the bubble rings.
Krill
The little blue krill will keep you from getting hurt. Collect as many as you can. The krill only protect you from things such as pufferfish and eels, but not from swift currents or mines.
Level select
Press Triangle(3), Square(2), Circle, Square, Triangle, Circle, Square, Triangle, Square, Triangle, Square, Triangle, Circle, Triangle(2) at the title screen, the load or start a new game. Pause game play to access the level selection option.
Puzzle solution
During the Submarine level, there is a pipes puzzle you must go through. As soon as you get into the room with the puzzle, look at the back wall right behind the door to find the solution to the puzzle.
Secret clue
While on the Mount Wannnahockaloogie level, look for an old brown sign. Dart behind the sign to score an important clue.
Secret level
Press Triangle, Square, Circle(2), Square, Triangle(2), Square, Circle(2), Square, Triangle(2), Circle, Square, Triangle, Square, Circle(2), Square, Triangle at the title screen, the load or start a new game. Pause game play to access the cheat option at the level selection menu.
Slide puzzles
Whenever you are trying to solve a slide puzzle, its best to start from the top first. You can keep sliding and solving the puzzle from left or right as you work your way down from the top.
Spinning Nemo/Marlin
When you find an anemmone hide in it. When you come out Nemo/Marlin will be spinning around. You'll know when they're stopping because first a green ! will come up then a yellow ! and then a red !