Single and Survivor modes:
Successfully complete arcade mode under the easy difficulty setting with any character.

Bonus characters:
Successfully complete arcade mode using each dinosaur. Every other completion will unlock a bonus character. A total of six bonus characters can be unlocked.

Exhibition mode:
Successfully complete the game with eight regular and five bonus characters to unlock exhibition mode.

Bonus FMV sequence:
Successfully complete the game with all fourteen characters to view a FMV sequence featuring dinosaurs.

Alternate appearance:
Successfully complete survival mode to unlock a appearance for the character that was used. Press Triangle at the character selection to change appearance.

Invulnerability:
Successfully complete survival mode without using any continues to unlock the "Invulnerability" option.

Hint: Ultimate winning move:
Jump and execute any move that will knock a dinosaur down from the air. Back away just in case that dinosaur intends to strike on its way up. As soon as the dinosaur is almost up, repeat the same move. If done correctly, the dinosaur will not be able to get up without you hitting it back down until its energy drains.

Hint: Spino vs. Sucho:
When playing Spino and are fighting Sucho, press Right + Square + X. You will get on top of Sucho, push him down, and jump off.