Debug mode
Hold [L] + [X] + [Y] + [Z] + [B] at the options screen. Release all buttons, then hold [L] + [Y] + [B] buttons. Return to the main menu to enable drag mode (free movement) and/or display mode (view debug messages).
Free movement
Hold [L] + [X] + [Y] + [Z] + [B] at the options screen. Return to the main menu. The message "DEBUG DRAG" will appear in the lower left corner of the screen to confirm correct code entry. Begin game play, then hold [L] and press the D-Pad to move anywhere in the current level.
View debug messages
Hold [L] + [X] + [Y] + [Z] + [B] at the options screen. Return to the main menu. The message "DEBUG DIS" will appear in the lower left corner of the screen to confirm correct code entry.
Easy mode
Enter the password "XXXXXXXXXXXX" as a password. Blood will be disabled and opponents will be easier to kill.
Level select
Enter "XAXYYYYYZXYY" as a password.
View Velociraptor gallery
Enter "XZXYXYYYZXYY" as a password.
View Compy gallery
Enter "AYXYXXZXZZYY" as a password.
View T. Rex gallery
Enter "YXXYXYYYAYXY" as a password.
View any dinosaur gallery
Enter "XZXYXYYYZXYY" as a password.
View human prey gallery
Enter "YZXYZAXYAAXY" as a password.
View hunter gallery
Enter "AXXYAYXYYYXY" as a password.
Level passwords
Enter the following passwords to begin game play at the corresponding level.
| Level | Password |
| Human hunter | YYXYZYYYXZXY |
| Velociraptor | ZXYYYZXYXYXY |
| Tyrannosaurus Rex | AYYYXYXYYZYY |
| Human prey | YYXYZYYYZXYY |
Hidden audio
Enter the game options and turn the music off and set the sound effects volume to the maximum. Begin game play as the Velociraptor or Tyrannosaurus Rex and begin killing humans. At times, certain victims will say "fuck off" in a faint, but distinct voice.