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

Spyro The Dragon demo:
Press Up(2), Down(2), Left, Right, Left, Right, Square at the title screen.
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Hint: Dante's Dash:
Collect 27 Trophies or successfully complete all levels to unlock the Dante's Dash level.

Hint: Keg Kaboom:
Collect 25 Gems, then go to the fifth floor to unlock the Keg Kaboom level.

Hint: Splash Dash:
Defeat the final Boss and collect 22 Gold Relics. Go to the fifth floor to unlock the Splash Dash level.

Glitch: Invisible ship:
In Sky Balls, Crystal Challenge, get a CPU player down to one. Die via a bonus ball. Before "FAIL" appears, a ball may go into the player with one's goal. If it goes in, wait a little bit. The bottom should explode when the energy hits it. However, instead of the whole thing exploding, only the bottom will, leaving the player hanging on to the sticks.

Top slog:
Press R2, Circle, L2, R1, Select at the "EA Sports" menu. Then, press L1 during a game for the top slog.

Easy hit:
Move up to yellow circle and wait to bowl is bowled then hit. If hit, it is always a 4, or if you are lucky, a 6.

Hint: Same country vs. each other:
Select "Training Mode" at the main menu. Choose the country that you want to play against itself then start the training session. Bowl a couple of balls, then exit training mode and return to the main menu. Select "One Day International", and at the menu that gives you a choice of teams, both teams will be the same country.

Animation select:
Press Up(2), Down(2), Left(2), Right(2), Select at the title screen. The word "Start" will turn to "Animation" to confirm correct code entry.

Debug mode:
Press R1(2), L1(2), R2(2), L2(2), Left, Circle, Right, Square, Select, Start at the title screen. Full equipment will be available during the game. Press Select to skip the current level.

Maps:
Press R1(2), L1(2), R2(2), L2(2), Left, Circle at the title screen.

Hints:
There is a door in the fifth level that requires a code. The code (6178) is written on the key that can be found in the previous room. A code is also required in the ninth level. Enter 2360 at the upside-down triangle in the center of the level. The exit will then appear on its back.

Duke Nukem: Zero Hour Cheat Codes

Expert mode:
Successfully complete the game under the normal difficulty level. The "Expert" difficulty level will appear on the option menu.

Free mode:
Successfully complete the game with both the Eiji-Julia Team and Keneth-Feisu Team in single mode or pair mode. Free mode allows any two characters to be selected during a two player game. Note: No FMV sequences will appear in this mode.

Extra mode:
Press Up, Down, Left, Right, X, Circle at the title screen. A new "Extra" option will appear that allows the game to be played with new enemies and alternate enemy positions.

Hidden area 6:
Select a character in versus mode. Then, highlight the random option on the area selection screen, hold L1, and press Circle.

Hidden area 7:
Select a character in versus mode. Then, highlight the random option on the area selection screen, hold L2, and press Circle.

Fight as Hagane:
Complete theater mode under any difficulty level. Hagane may now be selected in tournament mode.

Fight as Merkuar:
Complete tournament mode using any fighter.

Fight as EX Rickey:
Complete tournament mode under the hard difficulty level.

Fight as Sieguei:
Complete tournament mode under the easy difficulty level.

Mr. Phatt submarine:
Complete the game under the medium difficulty level. Defeat Mr. Phatt using a combo attack that results in a minimum of 48 points of damage.

Agent 326 submarine:
Complete the game as Mr. Phatt under the "Captain" difficulty level. Defeat the Cephalopods (Bosses) with a final score over 1 million points.

Abbadon submarine:
Complete the game as Agent 326 under the "Captain" difficulty level.

Overseer submarine:
Complete the game with each of the regular characters under the "Captain" difficulty level. Note: Save the game each time the game is completed.

Duke Nukem: Zero Hour Cheat Codes

View endings:
Display the Load/Save screen and enter TTAM at any character's name. The character's ending movie, access code, and the end credits will be displayed.

Rank 3 characters:
Display the Load/Save screen and enter FENG at Dayton's name on the player one side. All players will be set at their best rank.

Level select:
Enter ULDLRLDULRRDRRU as a password.

Super password:
Enter LLLLDRRLLDRDLUR as a password to start at the final level of hidden island 5-B with all secrets.

Sound test:
Press Select at the "Audio Options" screen.

Invincible falls:
Pause the game as Croc yells while falling. Press Select and choose the "Quit" option. Then, select the "No" option. Press Down at the quit game screen so neither the "Continue" or "Quit" options are selected. Press X and restart the current level without losing a life.

Hint: Be Weelly Careful: Bonus area:
At the beginning when you go into the first doors and get to the first wheel, the floor is ice. Near the right hand corner, jump off the edge. If done at the correct location, you will land on a gray floating panel which will take you to a bonus.

Hint: Fight Night With Flibby: Bonus area:
At the very beginning, turn around . You will see a rock covered in flowers. If you stomp or double jump on it, you will be taken two a bonus with lots of worms in wells. Go towards them, then step back so they do not kill you. When they go in again, jump into the well and you will land on some jelly. Jump on the jelly, and if you are in the center you will get a heart. Keep doing this on the rest of them of them.

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