Complete level 1. (Normal or higher, no cheats)
Complete level 2. (Normal or higher, no cheats)
Complete level 3. (Normal or higher, no cheats)
Complete level 4. (Normal or higher, no cheats)
Complete level 5. (Normal or higher, no cheats)
Complete level 6. (Normal or higher, no cheats)
Complete level 7. (Normal or higher, no cheats)
Complete level 8. (Normal or higher, no cheats)
Complete the game in one sitting. (Normal or higher, no cheats)
Watch the alternate ending. (Normal or higher, no cheats)
Find the secret area in level 2. (Normal or higher, no cheats)
Find the secret area in level 5. (Normal or higher, no cheats)
Find the secret area in level 6. (Normal or higher, no cheats)
Find the secret area in level 8. (Normal or higher, no cheats)
Complete level 1 without any taking damage. If damage is taken after collecting the knife, you must restart the game. (Normal or higher, no cheats)
Defeat the Triceratops without taking damage. (Normal or higher, no cheats)
Complete the canoe stage without taking damage. (Normal or higher, no cheats)
Defeat the Sand Worm without taking damage. (Normal or higher, no cheats)
Complete the verticle running stage in level 6 without taking damage. (Normal or higher, no cheats)
Defeat the Pterodactyl without taking damage. (Normal or higher, no cheats)
Defeat the King Bionosaurs without taking damage. (Normal or higher, no cheats)
Find the Sound Test Screen.
Have max health and armor at the same time. (Normal or higher, no cheats)
Have all guns at the same time. (Normal or higher, no cheats)